Ford Mustang vs BMW 4 Series

What's the difference?

Obviously we can't speak to the whole of this new, seventh-generation Mustang range having only experienced the Dark Horse. But that's enough to make you appreciate just what a special car the Mustang is, even after all these years.

The company has managed to find new ways to improve arguably its most iconic model, keeping it fresh for a new generation. The Dark Horse is a worthy addition to the line-up, for however long it lasts, bringing a higher level of dynamic capability that will appeal to both long-time muscle car lovers and anyone who appreciates a good sports car.

The truth is, this is no mid-life crisis for the Mustang, it's actually ageing very gracefully, taking on new dimensions as it does. The bigger question is how much longer it has left in it, at least with an internal combustion engine. But that's a question for another day, for now we should just eagerly anticipate its arrival in Australia in 2024.

Note: CarsGuide attended this event as a guest of the manufacturer, with travel, accommodation and meals provided.

The BMW M440i xDrive Gran Coupe manages to combine sleek design with a fun-to-drive personality and surprising practicality. It’s a rapid premium, four-door, five-seater offering extra flair, and in this part of the market, good value. But more than anything else it’s got a cracking in-line six under the bonnet.

Ford figured out with the fifth-generation model that what customers want is a Mustang that retains the silhouette of the original 1960s Fastback, so ever since the design has been evolutionary rather than radically different.

That's no different with this seventh-generation model, which features a more modern look, with crisper lines, but still is unmistakably a Mustang from every angle.

There have been some more significant design changes though, the most obvious one being the decision to have a clear visual difference between the V8-powered GT and four-cylinder EcoBoost at the front-end of the car.

So, the GT gets a larger, more aggressive front grille and a vented bonnet, whereas the EcoBoost has a more subtle appearance, but both have a clear family resemblance.

The Dark Horse elevates this edgier look even further, with a more aggressive appearance that includes a racier bodykit, with a sizeable rear wing, that speaks to its more serious intentions.

The Dark Horse also includes a first for the Mustang in seven generations - a forward facing horse badge. While the now iconic striding 'Stang profile badge remains for the GT and EcoBoost, the Dark Horse gets its own unique badge that shows Ford isn't afraid to try new things even after all these years to keep the car fresh.

The forward facing view is meant to signify a dark horse in a race, sneaking up from the rear to take victory, with its flared nostrils meant to connect to the dual throttle bodies of the Mustang Dark Horse.

So, how does this four-door 4 Series differ from a four-door 3 Series? The answer is as plain as the nose on this car’s face.

BMW’s head of design, Adrian van Hooydonk, has been expanding the brand’s signature ‘kidney grille’ in every conceivable direction, and this is the much talked about interpretation adorning all 4 Series models (petrol, hybrid and electric) as well as the M3 sedan.

The new Gran Coupe is longer, wider, and taller than the outgoing model, and the track is broader, front and rear. The wheelbase has also been extended, now a whole 5.0mm longer than the 3 Series.

The DRLs and headlight main beams are LED with laser high beams, immense gills square up the edges of the front clip, while a vent and the strake attached to it stand the car apart. Plus, of course, the doors are frameless. 

One niggle, though. I’m not in love with the slender door handles. It’s hard to get a good grip on them, especially in the wet. 

Standard 19-inch alloy rims are shod with Pirelli P Zero rubber 245/40 fr / 255/40 rr), the roofline slopes distinctly towards the rear, a lip spoiler on the trailing edge of the tailgate is classic BMW, darkened LED tail-lights wrap around the rear corner, and a diffuser-type panel is flanked by large exhaust apertures.

Our car’s ‘Aventurine Red’ finish is a $3850 option, but to my eyes anyway it looks superb.

Exterior trim including the grille frame, front air intake inserts, mirror upper housing, model designation badges, and tailpipe are finished in ‘Cerium Grey’, which I reckon 99.9 per cent of people will see as black. 

The interior will be familiar territory for any current BMW owner, the 12.3-inch digital instrument screen sitting in a compact, hooded binnacle, and partnering with a 10.25-inch multimedia display standing proud of the dash above the broad centre stack. 

The seats are trimmed in top-shelf leather with blue contrast stitching, plus the grippy sports wheel is also wrapped in genuine hide.

BMW calls the finish on the main buttons and controls ‘Galvanic’ which translates to a slick silver metallic look and feel. Configurable ambient interior lighting is a nice touch, and the broad console enhances the driver-focused feel, with a sprinkling of carbon-fibre around the centre console and dash lifting the sense of occasion.

Overall, the interior feels clean and classy with an obvious attention to detail.  

The interior of this latest Mustang sums up where Ford was at with this new-generation model, as it introduces some attention-grabbing technology but also carries over large amounts of the previous model's design.

For example, the interior doors look nearly identical to the old model, with the same handles, window buttons and even trim elements.

The layout of the centre console is largely the same, too, with a pair of cupholders and a lidded centre console box making up the bulk of the small item store space.

The materials used have improved in some areas and stayed the same in others, with the softer touch plastics introduced on the mid-life facelift of the sixth-gen used again here.

However, the Dark Horse also gets a new carbon-fibre effect trim that features prominently around the dashboard for a fresh and sportier look.

But far and away the biggest difference between the old model and this new one is the instrument panel. Gone is the iconic 'double brow' design and in its place is a huge digital display that combines two screens into one long, plank-like element.

It's a 12.4-inch digital instrument panel and a 13.2-inch media touchscreen integrated together to try and help the Mustang appeal to a younger, more tech-savvy audience that wants its car to integrate with a digital lifestyle.

Unquestionably it makes a statement, whether you like the statement it's making will depend on your point-of-view.

If you love technology and the personalisation it offers you'll love it, but if you pine for the days of analogue dials you'll likely think it looks too much like a giant smartphone.

What you can't deny is the capability it brings, with a variety of virtual instrument displays to suit each of the driving modes the car has, including 'Normal', 'Sport' and 'Track', as well as the fun 'Fox Body' layout that harkens back to the '80s Mustang.

The central media screen has also been utilised for the Dark Horse with extra auxiliary gauges - for g-force, oil temperature, oil pressure, etc - able to be displayed, as well as the 'Track Apps' feature that allows you to record lap times, start times and controls the launch control and drift brake settings.

Unfortunately, the screens also control virtually everything, including the air-conditioning, so trying to make small temperature adjustments is more complicated than just pressing a physical button.

As for the seating, the Dark Horse is available with two seating choices up front in the US (and likely in Australia), with a standard six-way power adjustable leather sports seat or an optional Recaro racing-style seat trimmed in suede and mircofibre.

As for the rear seats, they remain incredibly tight for space and are better for storing bags rather than carrying people without severely compromising front seat leg room.

Despite the largely carried over body and interior, the boot is slightly smaller than the previous model, with the coupe measuring 376 litres compared to the 408 litres offered previously.

The Dark Horse we drove in the US was fitted with a tyre repair kit under the boot floor.

At close to 4.8m long the 4 Series Gran Coupe is a sizeable machine. Up front, the feeling is airy and comfortable, and the rear is surprisingly spacious, especially in light of the car's sloping roofline.

At 183cm I have to fold myself tightly to fit under the low roof, but once inside I have enough room to sit behind the driver’s seat set for my position with more than enough legroom and adequate headroom. Put three full-size adults across the back row, though, and there will be breathing difficulties.

Kids will be fine, however, and individual vents with adjustable temp in the rear was a big plus during a particularly hot test week.

For storage there are generous door bins in the front with room for large bottles, a decent glove box, dual cupholders in the centre console, a reasonable lidded bin (which doubles as a centre armrest), and the wireless device charging bay (forward of the gearshift) makes a handy oddments space when not in use.

In the rear, again the doors feature pockets with room for (medium-size) bottles, there’s a fold down centre armrest with two cupholders, but thanks to the one-piece shells on our test car’s optional M Sport front seats there are no map pockets.

Power and connectivity runs to a USB-A socket and a 12V outlet in the front centre console, as well a USB-C port in the front storage bin, a pair of USB-Cs in the rear, and a 12V outlet in the boot.

Speaking of which, lift the tailgate and with the rear seat upright we were able to fit all three of our suitcases or the beefy CarsGuide pram into the healthy 470-litre (VDA) boot space.

Lower the 40/20/40 split-folding rear seat down and 1290 litres of volume is at your disposal. Plus there are handy bag hooks and tie-down anchors to help secure loose loads.

You can also tow a braked trailer up to 1.8 tonnes (750kg unbraked), but don’t bother looking for a spare of any description, a repair/inflator kit is your only option.

We’re in a zone some way North of $100K here with cost-of-entry running to $115,900, before on-road costs. So, as well as the included powertrain, suspension, and safety tech you should rightfully be expecting a lengthy standard features list.

And the M440i Gran Coupe goes toe-to-toe with its heavyweight Euro competition, featuring three-zone climate control air, adaptive cruise control, ‘Laserlight’ headlights, that 12.3-inch ‘BMW Live cockpit Professional’ instrument display and 10.25-inch ‘Control Display’ multimedia touchscreen managing navigation, the 16-speaker/464W harmon/kardon Surround Sound audio system (with Apple CarPlay and Android Auto integration) and a host of other on-board functions.

There’s also the ‘Vernasca’ Black leather trim, an electric glass sunroof, the leather-trimmed sports steering wheel, the electric sports front seats are heated and there’s wireless charging for compatible devices.

Despite plenty of rumours that Ford was preparing to electrify the Mustang, either as a hybrid or full battery EV, in the end the company has stuck to the tried and tested formula.

That means an updated version of the 5.0-litre V8 and a 2.3-litre turbocharged four-cylinder 'EcoBoost' engine, similar to the one offered in the previous generation.

The range-topping Dark Horse features the most powerful naturally aspirated engine Ford has ever installed in a Mustang, making 372kW (which is 500-horsepower) and 566Nm.

However, Australian models may not quite hit that figure due to our older emissions regulations, but a final number hasn't been released by Ford Australia.

The 5.0-litre V8 is paired to either a six-speed manual or 10-speed automatic transmission and a Torsen limited-slip differential.

The manual gearbox is specific to the Dark Horse, the Tremec unit is the same one used in the Mach 1 and features the same ability to 'flat shift' - change up gears without lifting off the accelerator if you have full throttle applied.

The GT features a slightly different version of that same 5.0-litre V8, and as mentioned earlier, it's available with or without an active-valve performance exhaust.

Australian GTs will get the improved exhaust system, meaning it will make 362kW/566Nm; instead of 358kW/562Nm with standard exhaust. It too is available with a 10-speed auto or a six-speed manual Getrag gearbox.

Finally, the EcoBoost engine is an all-new version of the same engine featured in the last model, featuring the same capacity and format but upgraded performance. The 2.3-litre four-cylinder unit makes 235kW/474Nm, up from 224kW/441Nm the previous engine produced.

Under the bonnet is BMW’s (B58) all-alloy 3.0-litre twin-scroll turbo intercooled, in-line six-cylinder engine, driving all four wheels via an eight-speed automatic transmission and electronically controlled clutch pack, as well as an electronic limited-slip differential at the rear.

It features high-pressure direct-injection and BMW’s ‘Valvetronic’ system managing air flow to the intake side, to produce 285kW at a relatively high 5800-6500rpm. But the big punch is 500Nm of peak torque from just 1900rpm all the way to 5000rpm.

The M440i is also a mild-hybrid with a 48-volt starter motor-generator and supplementary battery able to give an 8.0kW kick at low engine speeds.

As final specifications haven't been locked in for the Australian market we're basing these numbers off the US Environmental Protection Agency's claims.

They have the trio of Mustangs rated at 13.8L/100km for the Dark Horse and GT with their manual gearboxes, the GT auto at 13.0L/100km and the EcoBoost at 9.0L/100km to make it the most efficient of the bunch - unsurprisingly.

BMW’s official fuel economy figure for the M440i xDrive Gran Coupe, on the ADR 81/02 - urban, extra-urban cycle, is 8.2L/100km, the 3.0-litre turbo six-cylinder emitting 187g/km of C02 in the process.

Stop/start is standard, and we saw an average of 11.1L/100km over city, B-road and freeway running during a week with the car.

With the 59-litre tank brimmed (with minimum 95RON premium unleaded) that real-world test number translates to a range of around 530km.  

While the final Australian specifications may not be locked in just yet, Ford did provide us with a comprehensive drive experience in the Mustang Dark Horse.

We spent three days with this new model, driving it across a variety of conditions including urban roads, highway stretches, winding country roads and even at the Charlotte Motor Speedway.

Across all conditions the Dark Horse demonstrated a more refined driving experience than the model it replaces. The sixth-generation was the first Mustang designed for the global market, rather than focusing on the USA, and that meant it couldn't quite match its more worldly rivals.

But Ford has clearly worked to make strides on that front, including adding the Dark Horse to the Mustang range to launch with a definitive flagship model.

The engine may be carried over rather than all-new but you won't care when you put your foot down. The roar from the V8 is truly a thing of beauty to anyone who appreciates an evocative exhaust note.

It's a deep, guttural growl at low revs and builds to a more high-pitched scream as it approaches its 7300rpm redline.

It packs a punch, too, with enough grunt to shove you back in your seat and had no trouble hitting 205km/h just halfway down the back straight at the Charlotte Motor Speedway circuit.

It's a joy to drive with the six-speed Tremec 'box, especially on the track as it has both the rev matching for downshifts and the flat shifting for upshifts, which make you feel like a racing pro.

The flat shifting does take some getting used to and requires a lot of faith the first time you try it, as you need to have more than 90 per cent throttle and more than 5000rpm to make the system work correctly and not crunch the cogs. But when you get it right it just feels so good.

Even without that, on the road it's a nice gearbox to use, with a short, mechanical throw. It may feel a bit heavy for some, but it's in keeping with the muscular attitude of the Mustang.

It also feels really well matched to the engine, on the track but also the road. The engine has enough torque to take-off in second (and probably third) gear, feels nicely spaced through the middle gears and will cruise along in sixth gear in a relaxed manner.

The automatic is a nice alternative if you really don't want a manual, but the 10 speeds feel like overkill at times.

It has a preference for looking for the tallest gear possible at any stage in order to save fuel. This included on the racetrack, where it felt like it still wanted to go to the highest gear it could if you left it to its own devices.

Using the steering wheel-mounted paddle shifters is the better choice when you want to go for a spirited drive, but it just doesn't feel as engaging or shift as crisply as the manual.

As for the handling, on the road the Dark Horse is a pleasure to drive, with a new level of poise and directness than even the Mach 1 possessed. The steering is excellent, with a directness to it that makes the Mustang feel responsive to your inputs.

It helps that the Dark Horse rides on Pirelli tyres developed specifically for it, which provide excellent grip on the road and add to that feeling of responsiveness and composure.

However, if you want to take that to the next level, then you'll need to speak to Herrod Performance about adding the Handling Package options.

However, it's not clear at this stage if that will include the amazing Pirelli P Zero Trofeo RS tyres that are used in the USA. At this stage they're not approved for use in Australia, which is a shame because they provide immense grip and, once again, elevate the Dark Horse above any Mustang we've had so far.

The changes to the aerodynamics and suspension, along with the tyres, combine to make the Mustang Dark Horse with the Handling Package a genuine rival to the likes of the BMW M4 and Audi RS5 Coupe, in this reviewer's opinion. We'll stop short of saying it's clearly better, but it's definitely a rival on performance terms.

The other notable new addition to this generation Mustang in a nod to the younger audience is the addition of the 'drift brake' that allows you to slide the back of the car around.

Working like a rally car handbrake, the drift brake only needs you to dip the clutch and pull up on the lever/bar and the back wheels lock up and allow you to slide. It's a fun new addition that does add a new dimension to a car that was previously focused on straight line performance at the drag strip.

BMW says the M440i xDrive Gran Coupe will accelerate from 0-100km/h in 4.7sec, and I reckon the threshold for a properly quick car is sub-five seconds.

The 3.0-litre turbo six develops its peak power of 285kW between a relatively lofty 5800-6500rpm, but the big number is a solid 500Nm punch of pulling power delivered between 1900-5000rpm.

Squeeze the throttle pedal pretty much anywhere in the rev range and the response is glorious. Rapid acceleration accompanied by raucous engine noise and rorty exhaust note (albeit with some synthetic support). Various pops and bangs in the Sport settings add extra entertainment.. 

The eight-speed auto gets some electric support from the mild-hybrid system to fill the torque gap on up shifts, and the result is a conventional torque-converter transmission that behaves like a dual-clutch.

Shifts are seamless in general driving, and satisfyingly quick in a more aggressive mode, the wheel-mounted paddles dialing up the fun in manual changes. 

Suspension is double wishbone front and multi-link rear with the standard ‘Adaptive M Suspension’ built around an adaptive damper set-up.

The change between the ‘Comfort’ setting to the ‘Sport’ or ‘Sport+’ calibration is close to instant and makes a discernible difference, especially in terms of ride comfort.

I found the best ‘Individual Sport’ arrangement to be damping in Comfort, with the steering engine and transmission in Sport. The car flows so beautifully through corners with urgent response from the powertrain.

By all means dial up the suspension if you’re having a real crack, but the car feels superbly balanced, stable and predictable in Comfort (front to rear weight distribution is 50:50).

The electrically-assisted variable-ratio steering is nicely weighted with good road feel, and the grippy sports steering wheel is a nice point of contact.

The xDrive AWD system’s default setting is rear-biased, although it will push most of the drive forward when required. But the RWD feel is unmistakable. 

The M440i weighs in at around 1.9 tonnes but feels lighter and more nimble than that figure would typically indicate.  

A standard electronically-controlled M Sport limited-slip differential puts the power down confidently. I have a favourite LSD test corner on my regular evaluation drive, a sharply twisting and rising left-hander.

Rolling into it in a low gear before planting the throttle mid-corner, the car simply hunkers down without a hint of fuss (or traction loss) as it rockets out the other side.

Optional M Sport front seats ($2000) provide comfort and firm location in equal measure and in terms of ergonomics BMW knows how to focus on the driver and set-up an efficient environment. Key controls are perfectly positioned and simple to operate.

I have an issue with the ‘Lane Departure Warning’ function, however, which is too quick to intervene and overly intrusive when it does so. I turned the ‘Steering Intervention’ function off. You can dial down steering wheel vibration warnings, too.

The standard M Sport brakes feature big vented rotors front and rear, with fixed four-piston front calipers doing the bulk of the work. They’re strong but don’t bite or release too aggressively. It’s easy to grease in a smooth application. 

Active crash-avoidance tech in the M440i xDrive Grand Coupe is impressive with AEB standard, as well as lots of assistants and warnings, namely: ‘Steering and Lane Control Assistant’, ‘Cross Traffic Warning’ (front and rear), ‘Lane Keeping Assistant’ (with ‘Lane Departure Warning’ and ‘Lane Change Warning’), ‘Crossroads Warning’, ‘Evasion Assistant’, and ‘Parking Assistant Plus’ (including ‘3D Surround View and Reversing Assistant’).

If an impact is unavoidable there are six airbags on-board (driver and front passenger front and side, plus side curtains) as well three top tethers and two ISOFIX positions for child seats in the second row.

Plus an ‘Intelligent Emergency Call’ function automatically dials back-to-base if the car has been involved in a crash, and a comprehensive first aid kit is on-board. 

The BMW scored a maximum five-star ANCAP assessment in 2019.

Again, this is one of those topics with limited confirmed details at this stage, but there's no reason to believe the Mustang won't be covered by Ford Australia's usual five-year/unlimited kilometre warranty.

The M440i Gran Coupe is covered by BMW’s three-year/unlimited km warranty (including paintwork), as well as 12-year/unlimited km anti-corrosion (perforation) cover. 

That’s off the premium market pace now with Genesis, Jaguar, and Mercedes-Benz at five years/unlimited km and Lexus set to join them from January 1st, 2022. 

That said, roadside assistance is provided for the duration of the main warranty, but it’s worth noting “rattles and squeaks” are only covered for one year.

Service is condition-based, the car telling you when maintenance is required, and a range of service packages are available. The basic plan covering a 4 Series for five years/80,000km comes in at $1750.