BMW M5 vs Lamborghini Aventador

What's the difference?

Let’s get one thing out of the way: the new M5 is a very good car. Considering the emissions limitations and size increase of its base model, it is an impressive bit of engineering. 

What’s trickier is deciding whether the new car is really better to drive. Less edgy but supremely comfortable and quiet; BMW leaned into the daily usability of the plug-in hybrid M5 rather than amping the petrol-electric system for maximum thrills. And do you know what? That’s fine with me. 

The new M5 still performs on road and track and does an incredible job of hiding its weight (most of the time). Perhaps the G90 is a little more Audi RS6 than F90 in its demeanour but some would argue that’s no bad thing. 

The concept of the BMW M5 is not static, it evolves with the times, and the G90 is no exception. Expect future Competition and CS variants to unlock some extra lunacy. 

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

The Aventador isn't the best car you can buy for the money and truth be told, it isn't the best Lamborghini, which is a bit tough when you remember the only other car they make at the moment is the V10 Huracan. But it's all about the theatre as much as being a very capable supercar. 

I'm not a Lamborghini fanboy, but I completely get the Aventador. It's a because-we-can car, just like the Murcielago, Diablo and Countach before it. But unlike those cars, it's thoroughly modern and with the upgrades introduced to the S, it's faster, harder and enormously entertaining. 

As the last of a dying breed it delivers on everything a Lamborghini should - amazing looks, nutty price tag and an engine that excites not just driver and passenger but anyone with a heartbeat. It's by far the most charismatic car you can buy, no matter how many zeroes are on the cheque.

Photography by Rhys Vanderside

The M5’s raw size is what you notice first. The G90 M5 is a whopping 113mm longer, 67mm wider and 37mm taller than the car it replaces, with the wheelbase stretched 24mm.

It is also the most pumped M5 yet, compared to a 520i it is 70mm chubbier at its flared wheel arches. The ‘M5’ insignia on the C-pillar means you’ll know this is the fast one. 

Presence is not in question, then, but beauty? Not the right word. The G90 makes its predecessors — especially the original ‘E28’ — look demure. 

The cabin layout builds on the concept debuted by the iX electric SUV, with twin integrated screens and focus on technology and minimal buttons. Materials are mostly high quality and feel fitting for the M5’s asking price.

Asking if there's anything interesting about a Lamborghini design is kind of like asking if the sun is warm.

While there are some geese out there in the corners of the internet who think Audi has ruined Lamborghini styling, there is absolutely nothing shy about the Aventador. It's an incredible looking machine and, if I may say so, shouldn't be had in black because you miss a lot of the madder details.

This car is all about the experience.

It might look close to the deck in the photos, but however low you think it is, it's lower. The roofline barely makes it to the bottom of a Mazda CX-5's windows - you need your wits about you in this car because people just don't see you.

It is absolutely spectacular - people stop and point, one chap sprinted an easy 200 metres to take a photo of it in the Sydney CBD. Hello, if you're reading.

Inside is pretty tight indeed. It's amazing to think that a car 4.8 metres long (a Hyundai Santa Fe is 4.7 metres) struggles to contain two people over six feet tall. My six foot two photographer's head left an impression in the headlining. It's a tiny cabin. It's not a bad one though, it even has a cupholder on the rear bulkhead behind the seats.

The centre console is covered in Audi-based switchgear and is all the better for it, even if it is starting to look a bit old (those bits are from a pre-facelift B8 A4). The alloy gearshift paddles are fixed to the column and are brilliant to look at and touch, while the digital dashboard - which changes with the driving mode - is fantastic even if the reversing camera is awful.

BMW has persevered with its twin-screen, minimal-button approach for its 'Operating System 8.5' in the M5. 

The 14.9-inch central touchscreen is bright, responsive and high resolution but the software remains a little strange. The main interface is classy but when looking for settings to adjust you’re presented with a Windows 95-esque panel of small square touch targets. It’s not intuitive. 

Wirelessly mirroring Apple CarPlay or Android Auto works a treat, at least. Digital climate controls keep temp adjustment persistently on screen and a shortcut to fan speed. The nipple-like vent direction adjustment grows on you, as do the digital vent sliders. 

The 12.3-inch digital driver’s display still doesn’t have the freedom of customisation and clarity of Audi’s interface. 

The M5 has two cupholders, a deep central storage cubby, door bins that swallow two 600mL plastic bottles and twin wireless charging pad that resolutely grips smartphones even under the sort of tummy-churning G-Forces this M5 can manage. 

Setting the M5 apart from the regular sedan is a unique centre console bunching 'M Drive' modes, 'M Hybrid' modes and other shortcut functions together next to the gear toggle and M-engraved crystal 'iDrive' controller.

Comfortable front seats are power adjustable with in/out, up/down lumbar support and have two memory positions. 

The 5096mm long M5’s back seat is very spacious. Headroom is good for those beyond 182cm (six-foot), the bench is extremely supportive, while leg and toe room are adequate.

A fold-down centre armrest has two cupholders and there are USB-C charge ports in the back of each bucket seat for a total of four. 

You can buy an accessory mount that holds tablets or smartphones for rear seat passenger entertainment, too.

When you look in the boot, BMW offering a Touring version of the latest M5 makes even more sense. The load aperture is big but the usable space is narrow; the sides intrude on load space. 

The 466-litre space will make fitting suitcases for an airport run tricky and, even with the 40/60 split-fold rear bench, you will struggle to fit a bike in the back. There’s no spare tyre, either.

Yes, well. There's not a lot of space because a V12 is not just big all on its own, all the ancillaries to support it rob a lot of the remaining space. Having said that, there's room in the front for soft bags with a 180-litre front boot, space for two people inside, a cupholder and a glove box.

And the doors open up into the sky rather than out like a normal car's. Who cares if it's impractical, it's hardly something that's going to stop someone buying one.

As with any Italian supercar, the price-to-feature ratio is rather higher than your average humdrum hatchback. A 'naked' Aventador S starts at a horse-spooking $789,425 and basically has no direct competition. Ferrari's F12 is front-mid engined and any other V12 is either a decidedly different Rolls Royce-type machine or super-expensive niche manufacturer (yes, niche compared to Lamborghini) like Pagani. They're a rare very breed, Lambo knows it, and here we are a sneeze-on-the-spec sheet away from $800,000.

So you have to keep two things in mind when rating a car's value for money at this level. The first is that there isn't any real rival in a pure sense, and if there was, it would be the same price and have the same spec. That's not excusing it, by the way, it's an explanation.

Anyway.

For your eight hundy you get 20-inch front wheels and 21-inch rears, climate control, cruise control, 7.0-inch screen (backed by an older version of Audi's MMI), four-speaker stereo with Bluetooth and USB, car cover, bi-xenon headlights, carbon ceramic brakes, electric seats, windows and mirrors, leather trim, sat nav, keyless entry and start, four-wheel steering, leather trim, digital dashboard, power folding and heated mirrors, active rear wing and active suspension.

The number of out-of-the-box options is staggering and if you're keen to really get on it, you can commission your own options when it comes to trim and paint and wheels. Let's just say that as far as the interior went, our car had almost $29,000 of Alcantara, steering wheel and yellow. The telemetry system, heated seats, some extra branding and front and reversing camera (uh-huh) added up to $24,000, the cameras almost half that total.

With all the bits and bobs, the test car we had was a sobering $910,825 before on-roads.

Unlike the Mercedes-AMG C63, BMW has kept the M5’s eight-cylinder heart and this has proven to be a good decision. 

The 4.4-litre twin-turbo petrol engine has been optimised with “a cross-bank exhaust manifold and optimised oil separation”, says BMW.

The V8 spins to 7200rpm though it isn't a screamer, outputting a full-bodied 430kW (5600-6500rpm) and 750Nm (1800-5400rpm).

Augmented with a transmission-mounted 145kW electric motor that can produce up to 450Nm, thanks to pre-gearing, maximum combined outputs are 535kW and 1000Nm. 

Weight blunts punch, though, so despite nearly 100kW and 250Nm more, the new M5 is a tenth slower to 100km/h than its predecessor (claimed), at 3.5 seconds for the sprint.

You can thank a 220kW/tonne power-to-weight ratio, worse than the old car's 233kW/tonne figure. The new G90 claws some time back with brute force, hitting 200km/h in just 10.9 seconds and goes on to a limited top speed of 305km/h.

You can choose from five powertrain settings, starting with 'Electric' and 'Hybrid' for everyday use, while 'eControl' lets you store battery power for urban use.

'Dynamic' provides the best balance, says BMW, while 'Dynamic Plus' is like a qualifying mode. Think maximum combined punch for up to 10 minutes, at which point you’ll have drained the battery. 

Driving in pure electric mode, the take-off can be a little jerky but the quietude and decent power make it pleasant. Power sources are combined expertly in Hybrid and giving it some stick in Dynamic is more than enough to make your passengers feel queasy.

The Aventador S is powered by Automobili Lamborghini's 6.5-litre V12. You know it's a V12 because there's a plate on top of the engine (which you can see through the optional glass cover) that says so, and handily, tells you the cylinder firing order. That's a neat touch.

Buried deep in the middle of the car, this monster engine develops an astonishing 544kW (30kW up on the standard Aventador) and 690Nm. Its dry sump means the engine sits lower in the car. The gearbox is slung across the back between the rear wheels - the rear pushrod suspension actually sits on top of and across the gearbox - and is apparently brand new.

The transmission is known as an ISR (Independent Shift Rod) and has seven forward speeds and still just the one clutch. Power goes through all four wheels to the road, but it's clear the rears get the lion's share.

The 0-100km/h time is the same as the standard car, which kind of tells you that 2.9 seconds is about as quick as you can go on road tyres when you don't have four electric motors with torque from zero rpm.

Electric-only range is rated up to 69km in WLTP testing, but the 18.6kWh battery is more likely to give you around 60km in real-world driving. It can be topped up in about two hours using an 11kW AC charger, or overnight on a three-pin socket. 

BMW includes both Mode 3 (public) and Mode 2 (home) charging cables with the M5. 

The M5 uses 3.2L/100km of 98 RON premium unleaded in ADR testing, corresponding to just 72g/km of CO2, so it should sail through the first rounds of Australian emissions regulations. 

Indulging in what the V8 has to offer sees that consumption spike, though. An enthusiastic road drive saw the M5 gulp 12.4L/100km, according to the trip computer.

Hilariously, the official figure is 16.9L/100km. I doubled it without trying. Simple as that. If you're buying this car thinking it will be easy on the juice, you're insane.

Cheeringly, Lambo has at least tried, the V12 going silent when you sit at the lights, the best thing being the way it bursts back into life when you lift off the brake.

If you have the time available, it takes 90 litres of premium unleaded to fill the tank.

The three M5 elements start with daily usability. We trundled out of Bathurst in electric mode, with the adaptive dampers (and other myriad settings) in Comfort. 

The M5 has steel springs, double wishbone front suspension and a five-link rear axle, all of which has been heavily reworked by the boffins at M. Naturally, the ride is firm, though in Comfort the body moves through its motions smoothly. 

The M5 is an effortless tourer, its eight-speed automatic shmoozing through ratios as it climbs and descends steep gradients. Wind and tyre noise insulation is good on coarse chip tarmac, though a bit more burble from the V8 would be appreciated. 

The M5 has nine adjustable parameters to wake it up: 'Drivetrain', 'Energy Recovery', 'Drivelogic' (gear shift aggression), 'Chassis', 'Steering', 'Brake', 'M xDrive', stability control settings and 'M Sound'. Favourite settings can be stored to the wheel-mounted M1 and M2 buttons. 

With the dampers still in Comfort the M5 remains fantastically capable with power delivery from the xDrive mighty rewarding on corner exit. Sport dampers sharpen the experience up further, amplifying the M5’s surprising agility. Thank the rear-wheel steer for this big sedan’s switchback performance. 

Step beyond the limit of grip, brake too late, or get on the power too early, though, and the M5’s mass reveals itself rapidly. It doesn’t help that the accurate steering is devoid of feel. The brake-by-wire pedal is too numb and light, as well, making it tricky to judge grip levels on the road.

Feel is less of an issue on a dry Mount Panorama circuit, where the M5 turns out to be a total pussycat. The all-wheel drive, consistent dynamics, strong brakes and well-tuned stability control make for an approachable but seriously fast sedan.

The responsive transmission will hold gears to redline and is eager on the downshift in its most aggressive setting while tactile shift paddles make commanding ratio changes yourself that bit more engaging. 

Prodigious punch out of corners is matched by the impressive consistency of the carbon ceramic brakes. The M5 pulled up for The Chase every time with minimal fuss, even from above 250km/h.

Similar credit goes to the 285mm front and 295mm rear Hankook S1 Evo tyres which remained consistent and predictable all day despite reaching temperatures over 130 degrees, according to the tyre pressure monitor.

In Strada or Street mode, awful. Everything is slow and doughy, particularly the gearshift which goes looking for a gear like dog looking for a stick you didn't throw, but instead hid behind your back. The low-speed ride is nothing less than terrible, fidgeting over every single lump and bump and is only slightly more appealing than being dragged along behind.

The gearbox is really the worst bit about it. Automotive history is littered with cars that laboured along with a single clutch semi-auto: Alfa Romeo 156, BMW's E60 M5 and today the Citroen Cactus is stuck with just such a dud transmission.

Like that old M5, however, there's a trick to making the gearbox work for you - show absolutely no mercy.

Switch the selector up to Sport, get off the highway or major arterial road and head for the hills. Or better still, a clear race track. Then the Aventador goes from a pain in the rear to a glorious, roaring, completely unhinged and unhinging battle cruiser. This car is all about the experience, from the second you lay eyes on it to the moment you put it to bed.

This isn't an everyday supercar and it's absurd to think Lamborghini thinks it is.

First up, there's the obvious entry point with those wacky doors. While it's tricky to get in, if you're under six feet and reasonably mobile, stick your backside in, keep your head down and you're in. If you've been clever, you've specified the glass engine cover so you can see out the back but the huge wing mirrors are surprisingly effective.

Has someone thoughtlessly parked the car in a tight spot? No trouble, the four wheel steer makes the car absurdly manoeuvrable given its extravagant length and width.

As we've already established, it's not much fun at low speeds, waiting until about 70km/h before things start to make a bit more sense. This isn't an everyday supercar and it's absurd to think Lamborghini thinks it is. It just isn't.

The old Aventador was not the most capable of machines but made up for it with its overall belligerence. The new S takes that aggro and dials it up. When you move the drive mode to Sport you are basically unleashing hell. You can pretend to be super-masculine and switch to Corsa (race) mode, but it's all about getting the car straight and getting you around the track in the most efficient way possible. Sport is where it's at if you want to have fun.

The Aventador is about being seen, but not before you've been heard - from two postcodes away. It really is utterly glorious when you have a stretch of road to yourself. The V12 revs furiously to its 8400rpm redline and the wallop of the upshift is accompanied with a fantastic bark and a burst of blue flame. And these aren't the best bits.

Approach a corner, stomp on the colossal carbon ceramic brakes and the exhaust erupts in a combination of bangs and pops and growls that puts a smile on even the most hardened car-hater's face. The fact it steers into corners with just a demure roll of the wrist, aided and abetted by that funky four-wheel steering system. It's just brilliant, addictive and truth be told, it gets under your skin.

The Aventador doesn't have an ANCAP safety rating but the carbon chassis also comes with four airbags, ABS, stability and traction controls.

In Australia, BMW has moved to match other manufacturers in offering a five-year/unlimited kilometre warranty on all its cars. 

Servicing is recommended on a condition basis, with the M5’s multimedia system prompting a visit to the mechanics. BMW offers pre-paid service packs for five years/80,000km at a price of $5059 for the basic offer and $8152 for 'Inclusive Plus', which covers brake pad and rotor replacements. 

It is expensive next to a regular 5 Series but when you consider the purchase price and performance level, the M5’s service pricing is not astronomical. 

In an unexpected twist, you'll get a three-year/100,000km warranty and the option to increase to four years ($11,600!) or five years ($22,200!)(!). Having recovered from typing that, given the cost of something going wrong, that's probably money well-spent.