BMW 420i vs MG MG5

What's the difference?

The BMW 420i is a terrific car if you're after a bit of style and sophistication. Not everyone will warm to your car's nose, but if you get it de-chromed, like this white one, it really does look pretty good. It's a car that uses very little fuel, moves along smartly and is brimming with a decent amount of tech, even if it could do with a bit more safety gear at this price. 

I reckon this car is settling well into the automotive landscape and ignoring it because of a few loudmouths think the grille is too big would be a terrible waste.

The MG5 works well as a budget-friendly small car, and it’s genuinely good to drive.

Some small let-downs in terms of packaging don’t detract from this car in any major way, but the lack of active safety is a concern considering the features most of its rivals offer.

If it’s on your shopping list, make sure you know what else is on offer in terms of safety before you lock in the MG5 for the savings.

The internet exploded when it became clear the big kidney grille was for real. To be fair, BMW did itself absolutely no favours by ensuring the photos of the 4 Series made the twin grille look Easter Island statue sized. 

And it persisted in doing them naked, without number plates to break up the look. In the flesh, it all works, the nose is striking but not completely overblown. 

BMW coupe elegance reigns supreme in profile, however, with excellent proportions, and even in base form the wheels are the right size. The slim tail-lights and sculpted tail complete the look. It's a car I think most people love looking at. Hardly anyone mentioned the grille.

The cabin is excellent, as are all of the newer BMW interiors. It's not really a base model, given the price, but the mix of Alcantara and synthetic leather is very pleasing. 

The big screens for the media and instruments headline the cabin with high-tech style and while it's not avant-garde, it's sharp and feels premium, which is just as well.

The MG5’s styling might be a little divisive, with the overall shape and look of the small sedan sitting somewhere between its direct rivals, like the Hyundai i30 Sedan, and aspirational models like the Mercedes CLA.

In this Essence variant, the grey insert for the grille gives the front a darker, more aggressive look, though the way the grille mesh weaves makes it look a little like moustache hair.

The large ‘intake-style’ design at the sides gives it a sportier look than its outputs have perhaps earned - not to say the MG5 is sluggish - and following those around to the side of the car leads to a fairly minimalistic and tidy silhouette.

Here, probably most notable is the rather tall gap between the tyres and wheel arches.

The rear, with that sloped-up roofline, transitioning into a gentle lip spoiler, flanked by those lights, is where CLA fans might have the most to say about the MG5’s design.

Notably, the exhaust vents at the bottom are fake. The real exhaust exit is hidden well underneath.

As a sports coupe, it's hardly a practical all-rounder but it's not a squishy 2+2 either. The rear seats are sculpted for maximum headroom and have the added bonus of holding onto rear passengers. 

Six footers won't be super-comfortable but it's bearable for short trips. There are two ISOFIX points back there, too. 

The front seats electrically fold out of the way for ingress and egress, but it's not an elegant process.

Front-seat passengers score two cupholders and bottle holders in the doors and a black hole for your phone and its wireless charging pad.

The boot takes an impressive 440 litres and the rear seats split and fold like good little soldiers.

Some newer brands to Australia, often MG’s compatriots from China, get some of the ergonomic or tech basics wrong as they focus more on an impactful first impression. Fortunately, MG doesn’t do that, for the most part.

Inside the MG5 is a cabin that looks more expensive than it is, but has some useful features to back it up without the superfluous add-ons.

Aside from the lack of physical climate controls - an annoying cost-saving or interior-tidying trend embraced by brands from budget to bougie - the MG5’s interfaces and ergonomics are pretty sensible.

Accessibility ticks for the steering wheel buttons being few and large enough to use without needing to look, as well as the lack of a panel of buttons and switches in the centre console. Looking at you, BMW.

The screen is also functionally sound, with obvious menu layouts and fairly large buttons as touch points, so it doesn’t feel like trying to operate a tablet while you’re driving.

It does, again, lose points for the climate control situation, which weirdly features a temperature slider as a colour gradient rather than numerical temperatures.

No wireless phone charger means needing space for a plugged-in phone, which the MG5 has just enough of, though similarly ‘just enough’ is the size of the cupholders, which won’t fit a big water bottle.

In the rear, there’s space enough for an adult to sit comfortably behind another adult, though it’s not the place for long journeys.

Strangely, there’s only one central vent control in the rear so only one passenger gets cool air or heat, plus there isn’t a great deal of storage. No armrest or cupholders for rear passengers, either.

Also noteworthy is the single-piece rear seat, which means if longer items need to be transported in the 401-litre boot, the whole rear seat must be folded down and the MG5 temporarily becomes a two-seater.

Under the boot floor is a space-saver spare, though, so bonus points for a more useful addition than a simple repair kit.

MG has managed to cram quite a bit into the MG5 for less than $25K drive-away in its Vibe entry-level variant.

More specifically, you’re forking out $24,990 to head off from the dealership in one, even with its missing active safety features, but we’ll come back to that.

In Vibe specification, the MG5 comes with 16-inch alloy wheels, auto LED headlights, a reversing camera and a tyre pressure monitor, while inside you’ll find a 10.0-inch touchscreen with Apple CarPlay and Android Auto capability (both wired) with four speakers for the sound system, as well as a push-button start, synthetic leather seats and three different selectable steering modes.

Stepping up to the Essence, which we’re testing here, costs $28,990 drive-away and adds a sunroof, a six-speaker sound system, electric seat adjustment for the driver, steering wheel paddle shifters - for a reason we’ll return to - and turns the rear-view camera into a surround-view parking camera.

The Essence is also visibly different on the outside thanks to slightly larger 17-inch alloys, auto-fold (when locked) side mirrors, and a grey grille insert rather than body-coloured.

On that, you can have white or yellow as no-cost paint colours in either MG5 variant, but metallic red, blue, black or grey are all $700 options.

The 420i’s 2.0-litre turbocharged four-cylinder, codenamed B48, spins up 135kW/300Nm. Driving the rear wheels through an eight-speed ZF automatic transmission, you'll go from zip to the 100km/h mark in 7.5 seconds, which is brisk, if not staggering.

Both versions of the MG5 come with a 1.5-litre four-cylinder engine that drives the front wheels, but the similarities mostly end there.

In the entry-level Vibe, that engine is naturally aspirated and makes 84kW and 150Nm - similar to the MG3. Power is transferred to the front wheels via a continuously variable transmission (CVT).

In our Essence variant the engine is turbocharged and makes a suitably higher 119kW and 250Nm, driving the front wheels via a seven-speed dual-clutch automatic transmission.

BMW's official combined-cycle figures seem to be slowly moving towards reality. The 420i's sticker figure of 6.4L/100km was met with an indicated 6.8L/100km, which was excellent going for almost exclusively suburban and urban running. 

It's a solid result, but being a BMW, it's premium unleaded only for its 59-litre tank.

With my generally unsympathetic (but not psychopathic) right foot, that means a real-world range of over 800km between fills.

The naturally aspirated Vibe's official combined cycle fuel economy figure is 5.7 litres per 100km, while the turbocharged Essence drinks a little more at 5.9L/100km.

For comparison, Toyota claims its non-hybrid Corolla Sedan will sip 6.0L/100km, while a Mazda3 Sedan claims 6.1L/100km. Not bad, then, if you can keep it near MG’s claim.

During our testing, with a mix of city, suburban, highway, and rural driving, the MG5 Essence burned through 95 RON premium fuel at a rate of 9.1L/100km, checked at the pump, though I wouldn't expect this to be representative of normal, calmer day-to-day driving.

One of the main things that sets a BMW sedan or sedan-based coupe apart is that they're good everywhere, except perhaps in quicksand. 

As the platform has matured and BMW's persistence with run-flat tyres has yielded improvements in tyre construction, the 3/4 Series platform (and many others - the internal name for the platform is CLAR) has once again become the benchmark for ride and handling.

For some people reading this, that's a lot of blah blah blah but the main point is, it's a terrific thing to drive whether you're dawdling along in traffic, dealing with traffic calming or bombing down your favourite deserted road.

The Bridgestone tyres on the 420i aren't as ultimately grippy and sticky as the alternative rubber on the 430i but they work well in town and are quiet on the 80km/h roads so prevalent in Sydney. 

The steering is absolutely lovely, providing just the right weight at any given speed and throwing in the road feel to inspire confidence.

Ride around town is compliant but with the whiff of fun if you decide to push things outside of the city. 

Its capabilities are still more than worthwhile day-to-day, however, because the way it handles the need to duck in and out of spaces in traffic is extremely handy.

The 2.0-litre four-cylinder is as smooth as rival Audi's. It doesn't sound like much (with a few vestigial pops in Sport mode) but it's certainly got the power to get you out of sticky situations and a transmission that's willing to play ball, whether in Sport or Normal.

Without the adaptive suspension of its 430i and M 440i brethren, this is a very smooth, easygoing sports coupe, with just enough sportiness to keep you interested, if you're that way inclined.

Perhaps the biggest surprise about the MG5 is that it’s quite good to drive. And not just ‘for an MG’ or ‘for a car from China’. It’s actually good.

The turbocharged engine takes a moment to get going, and the dual-clutch can be a little hesitant off the mark.

The combo of the two means sometimes you need to plan your take off ahead of time - but in its above-3000rpm sweet spot, the Essence has a good bit of urgency to it.

That’s fortunately paired with a combination of comfortable suspension and a composed chassis, with well-weighted steering.

On urban roads and with a little awareness of the slow take-off, the MG5 is capable and well-suited to small roads, though it can be a little frustrating in stop-start traffic.

On the other hand, outside the confines of city driving, the small sedan is more dynamic than you might expect, able to get up to speed and comfortably overtake on highways, as well as handle corners on twisty roads confidently.

Potholes and rough sections of road don’t rattle the MG5 as much as you might expect from a car in this segment, though road noise can be a intrusive on coarse roads - of which Australia has many.

Dare I say it - the MG5 is rather fun.

Here’s the bit that might turn potential owners off the MG5. Or here aren’t the bits, more accurately.

The MG5 comes with a short list of safety features that amount to the minimum standard for a car to be sold in Australia.

That is, six airbags, autonomous emergency braking (AEB), anti-lock brakes (ABS) and electronic stability control (ESC).

MG also lists hill-hold under its safety features, as well as its active cornering brake control and auto door unlock and activation of hazard lights in case of an accident.

There are also ISOFIX and seat tether points for the outer rear seats.

The reverse camera in the Vibe is replaced by a surround-view camera in the Essence, though the visual quality of the feed leaves a bit to be desired.

Crucially, it’s missing a host of safety features that would be standard, or at least optional on a rival like the Toyota Corolla Sedan or Mazda3 Sedan, like steering assist, a pre-collision safety system, pedestrian detection, active cruise control and even lane departure alert.

Rear cross-traffic alert and blind-spot monitoring? Nope.

MG Australia CEO Peter Ciao told CarsGuide not long ago it’s about keeping the price of the car accessible for more customers, which means you’ll have to make your own call regarding whether it’s safe enough for you.

To that, ANCAP hasn’t crash tested the MG5, but if it did we wouldn’t expect it to score any higher than three stars.

While we don’t know how it would hold up in the area of crash protection, it lacks too much of the active safety gear that ANCAP expects of a maximum five- or even four-star car.

BMW offers a ho-hum length of three years and 100,000km of warranty coverage. Mercedes has gone to five years so one wonders why BMW (and Audi) hasn't joined its German rival.

Servicing is entirely reasonable at $1650 for a five-year/80,000km package that covers the 12 month/16,000km servicing regime. 

At $330 per service, it includes things many carmakers don't, such as brake fluid and spark plugs. 

You can go full noise with the 'Plus Package', which costs $4500 and chucks in brake pads, rotors and even windscreen-wiper replacement. That doesn't seem like terribly good value to me unless you drive like a lunatic.

MG offers a seven-year/unlimited kilometre warranty on the MG5 as with all its models - even electric cars. That also comes with roadside assist for the duration of the warranty, though only 160,000km is covered by the warranty if the car is used for commercial purposes.

Servicing prices for the MG5 range from $266 or $272 for the Vibe or Essence, respectively, up to $581 or $661 for the most expensive of the seven 10,000km/12-month scheduled services.

The total cost of servicing the Vibe over its seven years under capped-price servicing comes to $2661, or about $380 average per service. For the Essence, that bumps up to $2764 or an average of about $394 per service.