McLaren 750S vs Audi RS7

What's the difference?

Not just a love letter to the intoxicating delights of the mighty V8 engine, the McLaren 750S is a genuine joy across the board.

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

The new-generation RS 7 Sportback heralds the further evolution of this large majestic beast, with more features, a beautifully finished cabin and with more grunt with the looks to match. You’d be hard-pressed to find a better combination of power, dynamics and comfort in the Audi range – apart from in the RS 6 Avant of course.

McLaren concedes the cosmetic updates for the 750S are “relatively subtle”, but there have been some key changes.

The front bumper and splitter are new, as is the rear bumper, while the rear wing is now bigger, with 20 per cent more surface area.

Also at the back, a new (and lighter, of course) stainless steel exhaust is now centre-exit, rather than off to either side.

Like the 720S before it, the 750S looks more like a statement of intent than a designer’s dream, with aerodynamic function over form the order of the day.

In the cabin, you’re looking at two sports seat, a grippy Alcantara steering wheel, and two relatively small screens by today’s sizeable standards.

You can have your cabin trim in full Nappa leather, or the leather mixed with Alcantara, and the audio is taken care of by Bowers & Wilkins.

Still, the 750S delivers everything you need and nothing you don’t in a car in this category.

The big news is the RS 7 Sportback now comes with five seats. The previous generation car had just two seats in the second row. I'll talk more on practicality below but for now let's examine the new styling.

This RS 7 Sportback has new broad, black mesh grille, flanked by gigantic side air intakes, narrow headlights, and a thin upper air inlet which is a hat tip to early racing Audis.

While that new angrier, more angular and menacing face is a showstopper, everything about the new RS 7 Sportback seems to be accentuated further.

Look at the wheels. The previous generation came with 21-inch rims, now the new normal for the RS 7 are 22-inches – they're huge. Those wheel guards also flare out 20mm more than a regular A7's and the rear haunches have bulked up massively.

Come to the back of the car and the diffuser and bumper have also been beefed up. Nobody sitting behind you in traffic is going to think this is just a regular A7.

Don't expect the RS 7 Sportback's insides to be just as hardcore as its exterior. The cabin is almost identical to a regular A7's. It's a stunning cockpit dominated by a dash which protrudes back towards the passengers and houses the media screen. Anther display for climate is set into the big centre console which divides the driver and co-pilot into almost cocooned cells.

The cabin isn't without its RS touches though – there's the sports seats with honeycomb stitching, fully digital instrument cluster with RS specific meters, the RS steering wheel, the Nappa leather on the dashboard and the doors, the aluminium inlays. The level of fit and finish is up there with the best that I've seen on any production car.

The RS 7 Avant is 5009mm long, 1424mm tall and 1950mm across for a wide planted stance.

Next question, please. This is a stripped-back, lightweight, two-seat supercar designed to get you to, and then around, a corner in the least amount of time possible. So, no, you can’t fit much in the way of grocery shopping in the back.

You can, however fit a total 150 litres (front) and 210 litres (rear) in the 750S, and it gets bonus points for having deep cut-outs in the roof that make slipping in under those scissor doors far easier than you might expect.

The previous RS 7 Sportback was a four-seater, now it has five seats. That's right, a middle seat has been added to the second row, but, as you'd expect, it's not the best place be in the RS 7 Sportback, straddling the large driveshaft and ducking under the low roof-line.

That fastback profile does mean headroom in the second row is nowhere near as good as the RS 6 Avant's, but legroom is the same and, at 191cm tall, I can just fit behind my driving position with about 10mm to spare.

Up front it's not as spacious as you might think. That stepped dash protrudes into the passenger's space, the door pockets are thin and the centre console storage under the armrest is small.

Sportbacks are more practical sedans thanks the large opening offered by the hatch. The boot's 535-litre cargo capacity is great and only about 30 litres less than what you have in the RS 6 Avant.

For phones there's a wireless charger and two USB ports in the centre console storage box, while back seat passengers have two USB ports and a 12V outlets. There's also directional air vents and dual-zone climate control in the rear, too.

The Audi RS 7 Sportback lists for $224,000, which is exactly $8K more than the RS 6 Avant.

Coming standard are the enormous 22-inch alloy wheels, the matrix LED headlights with laser lights, metallic paint, a panoramic glass sunroof (which is new to the model), privacy glass, head-up display, soft-close doors and red brake calipers.

Inside there's the Bang and Olufsen 16-speaker sound system (that new, too), sat nav, the 12.3-inch virtual instrument cluster, wireless Apple CarPlay (new, as well), wireless charging, full leather upholstery with RS sport front seats that are heated and now come with ventilation as standard, and four-zone climate control.

I've left off all the standard RS mechanical equipment, but I'll cover that in the driving section below.

Is it good value? Well the Mercedes-AMG CLS 53 S is $186,435 but it has way less grunt, the Alpina B5 which I've also road-tested lists for $210,000 and there's the Porsche Panamera 4 Sport Turismo for $236,300.

Ah, now we’re talking. In the huge-displacement world of supercars, a 4.0-litre twin-turbo V8 might sound a little on the small side when put up against V10s and V12s out of Italy. 

But this mid-mounted, twin-turbo powertrain perfectly compliments the overall balance of the 750S, and when its 552kW and 800Nm (fed through a seven-speed automatic) meets the lightweight McLaren, the results are staggering.

The zero to 100km/h dash is dispatched in 2.8 seconds, while 200km/h flashes by in 7.2 seconds. Want to push to 300km/h? You’ll need just 19.8 seconds.

The RS 7 may look like a large, well-mannered business class car, but think of it as a thug in a suit because this thing is a monster with a 441kW/800Nm twin-turbo petrol 4.0-litre V8.

That's almost 600 horsepower and the supercar acceleration that goes with it is brutal: we're talking 0-100km/h coming in 3.6 seconds. That also matches the RS 6 Avant and it's a tenth of a second faster than the Audi R8 V10 RWD supercar, (and also the previous-gen RS 7 Sportback Performance) and this is a large, four-door, five-seater.

Compared to the previous generation RS 7 Sportback Performance the power is down by 4kW, but torque is up by a whopping 100Nm. Give me torque over power any day.

Shifting gears is an eight-speed automatic transmission, sending the drive to all four wheels.

McLaren says you can expect 12.2L/100km on the combined cycle, with emissions pegged at 276g/km. But you can also expect to win the lottery. It doesn’t make it likely.

It’s hard to imagine how softly you’d have to treat the 750S to get anywhere near those numbers, but I know you almost certainly won’t. The temptation is simply too great.

This is a large, all-wheel drive car with a 600 horsepower V8, but it also has a mild hybrid system in this new generation, which will switch the engine off at let the car coast down hills or at speeds under 22km/h.

Audi says this can save up to 0.8L/100km in real-life driving. That's great news, but consumption is still fairly high with Audi saying that after a combination of open and urban roads the RS 7 Sportback will have used 11.6L/100km.

Usually we wouldn’t be dedicating much space to the kilogram’s shaved here and there off the total weight of a vehicle, but it’s important in this case.

In the 750S, that starts with a bespoke carbon-fibre monocoque platform, which is not only light, but also so inherently stiff that even chopping the roof off for the Spider version required no extra bracing or supports, and only marginally impacts the performance figures.

Then, there are the lightest alloys ever fitted to a series McLaren, which reduce unsprung weight by up to 14 kilos.

That rear wing isn’t just bigger, but also lighter, saving another 1.6 kilos, the carbon-fibre-backed seats save a whopping 17.5kg, the new suspension springs shave another two-or-so kilograms. The list goes on and on.

All up, they've found 30 kilos between 720S and 750S, which is now 1389kg total.

The result is a vehicle that feels endlessly athletic — light, lithe and perfectly balanced — but also one that, when you’re feeding on that endless power, feels as though it might suddenly take flight.

Flat-footed acceleration is laugh-out-loud fun, the tyres scrabbling for grip with each donkey-kick gear shift, even past 100km/h, with the rear end shifting around slightly as the Pirelli rubber deals with the physics of what’s happening. It’s loud, visceral and intoxicating, and you absolutely never tire of it.

But the magic in this McLaren is that it's more than just brutally fast in a straight line, it's also one of the most engaging vehicles I've ever driven, and one that provides a near-telepathic connection to the car, its tyres, and the tarmac below.

The more time you spend behind the wheel, the more tameable it feels, and even at warp speeds (somewhere above 270km/h), you feel connected and in control, owing mostly the open lines of communication between the tyres, the steering and the driver.

Also ferocious is the McLaren's braking force, combining carbon ceramic discs with a rear wing that doubles as a jet-style air brake, and stamping on the brake pedal produces vision-blurring force that leaves you feeling like you're not just stopping, but hurtling backwards through time.

So, race track, tick. But away from it, the McLaren – with its 'Proactive Chassis Control' hydraulic suspension – is surprisingly compliant when you want it to be, with its 'Comfort' drive mode delivering exactly that, softening the important bits so you don’t rattle yourself to death on the freeway.

If the 720S was a benchmark, then this 750S is something else entirely, shifting the needle in every important way to create a vehicle that sparks pure, unadulterated joy from behind the wheel.

I've never met an RS model that hasn't been great to drive – these cars are way more than just tough body kits and big wheels. The engineering which separates the RS 7 Sportback from the A7 makes them more distant cousins than siblings.

As I mentioned before the RS 7 Sportback and RS 6 share more than the same twin-turbo V8, there are also the giant brakes in form of 420mm discs at the front with 10 piston calipers and 370mm discs at the rear.

The optional carbon ceramic brakes are the largest ever to be fitted to a production vehicle at 440mm at the front and 370mm at the rear, saving 34kg in mass over the steel brakes.

Now standard for the first time is Audi's Dynamic Package, which adds dynamic steering (a variable ratio) paired with all-wheel steering, a sport differential, and a 280km/h top speed.

Coming standard is adaptive air suspension and for $2850 you can option the Dynamic Ride Control suspension, which is a hydraulically activated adaptive damper system 

At the Australian launch, Audi supplied two RS 7 Sportbacks: one with the air suspension and the other with not only the Dynamic Ride Control system, but also the RS Dynamic Package Plus which adds the ceramic brakes and increases the top speed to 305km/h – this was the car I started off in.

I'm going to say right away that you don't need ceramic brakes for regular road use. Sure it means you can tell people that you have the biggest brakes in the world and they save you almost 35 kilos in weight, and, yes, they're resistant to fading, but they're expensive to replace and the steel ones are incredibly good.

I also feel the Dynamic Ride Control sports suspension isn't necessary in a car like the RS 7 Sportback. This is a Grand Tourer designed to eat up hundreds of miles at lightspeed in comfort.

So, while I found the first RS 7 Sportback with the big brakes and sports suspension sharper and firmer than the standard car, it didn't seem to fit with this vehicle's intent.

The regular RS 7 Sportback still accelerated with the same brutal force and roared at the scenery flashing past. It still handled through the tight corners superbly with excellent turn in, mind-boggling traction and grip, and excellent body control, but all in far more comfort.

This is the point – we covered hundreds of miles at the Australian launch of the RS 7 Sportback in a range of RS models, and sports suspension can go from great to gruelling on Aussie roads with their coarse-chip bitumen and potholes. The RS 7 Sportback, with its air suspension, not only made driving far more comfortable, but easier, too.

ANCAP tested the A7 in 2018 and gave it the maximum five-star ANCAP rating, however, this rating does not apply to the RS 7 Sportback high performance model.

That said, the RS 7 Sportback is fortified with nearly every piece of advanced safety tech there is in Audi's cupboard. There's AEB which can detect and brake for cyclists and pedestrians at speeds between 5-85km/h and vehicles up to 250km/h; there's rear cross traffic alert and intersection crossing assistance with braking; lane departure warning and corrective steering to keep you in your lane, and blind spot warning.

Not a fan of parking, the RS 7 Sportback can do it by itself, or there's a 360-degree camera that'll help you do it yourself. There's an exit warning system, which will warn you if a vehicle is approaching as you go to get out, too, and if the RS 7 Sportback detects that it will be hit from behind, it will prepare the cabin by tensions the seatbelts and closing the windows, including the sunroof.

Along with all that there are Audi's new Matrix LED headlights with laser lights, rain sensing wipers and adaptive cruise control.

For child seats you'll find three top tether points and two ISOFIX mounts across the second row.

There's no spare wheel – instead, there's a tyre repair kit.

The 750S is covered by a standard three-year, unlimited-kilometre warranty, which is fully transferable.

Owners can also spring for an extended warranty, which can cover the McLaren for up to 15 years.

Servicing is required every 12 months or 15,000km.

The RS 7 Sportback is covered by Audi's three-year, unlimited kilometre warranty which not only falls behind in duration compared to mainstream brands but also its direct rival Mercedes-Benz which now has five-year, unlimited kilometre coverage. 

Service intervals are every 12 months or 15,000km with a three-year plan costing $2380 and a five-year plan for $3910.