Mercedes-Benz AMG GT vs Lotus Exige

What's the difference?

This is no Lotus, but damn if it ain't a hell of a good time, and proof positive that electrification can enhance the V8 experience, rather than ruin it.

To say the Lotus Exige 350 Sport exists at the very pointy end of motoring is a sharp understatement. It is, in essence, a track car that you’re somehow allowed to drive on the road, which means it's hugely compromised in various ways as a vehicle for day-to-day use, yet it's not really fair to criticise it for those failings, because commuting was never its intended purpose.

While it would obviously shine in its natural environment of a race circuit, the fact is you could also enjoy it enormously between track days if you pointed it at a suitably smooth and winding bit of country blacktop.

The performance, handling, steering and stopping are all fantastic, in the right conditions, and you can see how someone might justify it to themselves as a far cheaper version of a ($327,100) Porsche 911 GT3. The difference being that a Porsche doesn't make you fold yourself up like a pocket knife every time you get in.

The Lotus, then, is a car for the extreme enthusiast, only. And possibly for nudists, too.

It's a mean, but somehow still sleek, looking beast, this big AMG, but it's also immediately recognisable as a thing of intent.

Up front, there's the huge vertical-slat grille that looks like it drove straight out of a Stephen King novel, a massively domed bonnet, and these vacuum-like side intakes that look like they could suck in stray animals.

Then, at the back, there are twin dual-pipe exits (for four in total), and an automatic wing that pops out of the rear bodywork. And all of that's capped off with these massive 21-inch forged alloy wheels hiding golden ceramic-composite brakes.

Mean, yes, but not quite as aggressive as you might expect the most powerful AMG to date to come across, perhaps.

Inside, it's more subdued again, with the AMG presenting a pretty passenger-friendly space, with all the Benz tech you'd imagine, including the massive screens, and — thanks to its air suspension and drive modes — the ability to tailor the ride to your liking, meaning a comfortable and premium experience, despite the power under your right foot.

The Lotus philosophy is summed by this slightly absurd mission statement: "Simplify, then add lightness". In the words of the great Barnaby Joyce "you don’t have to be Sigmund Freud" to work out that lightness is not something you can 'add', but you get the idea.

Everything about a Lotus is focused on the power-to-weight ratio, and this 350 Sport version takes the Exige to the ultimate degree, weighing in a full 51kg lighter than the S version, at just 1125kg, and with its hefty 3.5-litre supercharged V6 it is capable of lapping the company’s Hethel, UK test circuit a full 2.5 seconds faster.

Lap times, rather than road manners, are what this car is all about, and as such there are no creature comforts of any kind.

The Exige is an eye-catching beast, though, looking a bit like Darth Vader's helmet strapped to a skateboard. Everything about it is a statement of intent, and while the interior is as bare as Barnaby's brain, the gear lever, with its exposed workings and shiny silver knob, is a thing of strange beauty.

It's not overly practical, given its size, with AMG locking in a four-seat configuration with a fixed rear pew that limits boot space. You can get folding seats, but only as part of an option package.

What you're left with is a vehicle that stretches 5054mm in length, 1953mm in width and 1447mm in height, but that serves up rear seating for only two – albeit very comfortably – and, because of the electric battery and motor being housed at the rear, boot space of just 335 litres.

There is triple-zone climate control, and the rear seating is lounge-like and luxurious, while the up-front space is ample for two full-size riders, too.

There's no spare, with AMG's 'Tirefit' puncture repair system on board.

Both the words 'practical' and 'space' have no place in a road test of this Lotus, so shall we just move on?

Oh, all right. There is no shoulder room to speak of and to change gears you have to fondle your passenger's leg. You're also in danger of breathing into each other’s mouths accidentally, you’re sitting that close.

Speaking of impractical, the door apertures are so small, and the whole car so low, that getting in or out is about as much fun as attempting to hide in a child's suitcase.

Cupholders? Forget it, nor is there anywhere to put your phone. There are two tiny oddment storage holes just near each well-hidden door handle, and a kind of slidey, slick shelf where a glove box might be, on which it’s not safe to leave anything.

Put things on the floor and they will slide under the super low seats and never be seen again.

The Lotus people pointed out a parcel shelf behind the seats, but I think they imagined it, and there is a tiny boot at the rear, behind the engine, which is smaller than some actual boots.

The question of 'value' is a tricky one when you’re looking at a $138,782.85 car that’s about as useful in day-to-day life as a matchbox-sized handbag. But you have to consider what people buy a Lotus for, and the answer has absolutely nothing to do with practicality.

A car like this Exige 350 Sport is purely purchased as a toy, a track-day special that you can, in theory, drive to the circuit via public roads. Franky, if I was rich enough to have one I’d still transport it there on the back of a truck.

Relatively speaking, you could have a far more practical and infinitely more comfortable Porsche Cayman for $30K less, but the Lotus is $30K cheaper than the similarly track-focused and brutal ($169,990) KTM X-Bow.

It is the opposite of comfortable.

In terms of features, you get four wheels, an engine, a steering wheel, some seats, and that’s about it. You can buy a circa 1993 removable-face two-speaker stereo, which you can't really hear over the engine and road noise, for $1199. Oh, and they do throw in air conditioning, which is also noisy.

Our slick-looking metallic black paint was also $1999, the 'full carpets' another $1099 (expensive floor mats, basically), the Alcantara trim pack $4499, cruise control (really?) $299 and the hilarious optional 'Sound Insulation' $1499 (I think they actually forgot to fit it). All up, our press car’s price climbed to $157,846, which, I have to say, is no one’s idea of good value.

On the plus side, the local Lotus people - Simply Sports Cars - do offer features a buyer would love, like regular Lotus Only Track Days, a chance to take part in the Phillip Island 6 Hour and the Targa High Country event, and various other racy experiences.

It's not just what's under the bonnet, but what's at the rear axle, too.

But let's start at the front, shall we? Here, a familiar twin-turbo V8 engine lurks, producing a potent 470kW and 900Nm, which is fed through a nine-speed automatic, complete with paddle shifters and several drive modes, including the traction-limiting 'Race'.

But that is then joined at the rear by an electric motor with its own two-speed transmission, and which produces 70kW and 320Nm – or up to 150kW for 10-second blasts under heavy acceleration.

Combine both, and you're tapping into around 620kW and in excess of 1000Nm, enabling a sprint to 100km/h in just 2.9 seconds, and a flying top speed of 316km/h.

In the past, Lotus engineers were satisfied with the power they got from tiny four-cylinder Toyota engines, but this Exige 350 Sport is a Very Serious Car and thus has a relatively whopping 3.5-litre, supercharged V6 shoehorned into its backside, which makes 258kW and 400Nm, and that's enough to fire this tiny machine from 0-100km/h in just 3.9 seconds, although it feels, and sounds, a lot faster.

The six-speed gearbox feels like it's been stolen from an old racing car and is an absolute joy to snick shift at speed.

Fuel efficiency is surprisingly impressive for a vehicle this big and powerful, with Mercedes claiming 7.7L/100km and 175g/km of CO2 on the combined cycle.

Helping that is a the 6.1kW battery, which delivers just 12km in all-electric driving range, but helps reduce overall fuel use.

This AMG is AC power only, meaning you can't recharge using fast chargers, but the brand says its secret trick is its ability to recharge itself using captured kinetic energy incredibly quickly – largely negating the need to plug in unless you want to unlock that EV range – with Merc suggesting that, on a race track for example, the battery will discharge and charge itself continuously as you're lapping.

Lotus claims a combined fuel economy figure of 10.1L/100km. We don't believe that would be easy to achieve, because the temptation to rev the hell out of it and hear it roar would be too great, and too constant.

There's a lot of big numbers surrounding the Mercedes-AMG GT63S E Performance, but let me throw another one at you – 245km/h.

That was the high score I saw pop up on its digital speedo as the big and electrified Mercedes flew down the main straight at Sydney Motorsport Park (formerly Eastern Creek), before my courage ran out and my foot found the brake.

That kind of velocity is mind-bending in a vehicle this big, and so is the way that power is delivered, with the AMG's big brain deciding how and when to maximise power from the engine and electric motor to deliver a constant surge of torque that shoves you back, and the GT63S E Performance into the future.

But big acceleration is hardly surprising with that much power. What is a little more impressive is how easy this four-door supercar is to wrestle around a racetrack.

Sure, the feeling-out process is a little more involved, as you figure out how and when you'll feel the weight shifting, and as your brain struggles to compute how what's happening is even possible, but after a couple of laps the AMG settles into an easy, flowing rhythm that, while never feeling light on its feet, also doesn't feels like you're piloting a bus.

At least part of that is down to the wizardry on board, like the 'AMG Air Suspension', the rear-axle steering and the limited-slip diff, all of which combine to make the GT63S feel tighter and sharper than it would otherwise.

But it's also partly down to the prodigious power on offer – perfect corner entry and exits are less relevant when you have a cruise missile strapped to your right foot that doesn't just quickly make up for any driver errors, but shrinks the space between corners to the blink of an eye.

Yes, it's heavy, and there isn't much that's pure about the go-fast experience, but it left an ear-to-ear grin on my face, and isn't that priority one for any new AMG?

How does it drive on the road? That I don't know, as this was a track-only drive day. But we will get one on a proper test soon and let you know.

It's rare to find a car that is such an improbable mix of furious fun and infuriating annoyance. The Lotus is rattly, noisy, hugely firm to the point of punishing, with seats that offer encouragement but not support.

It is the opposite of comfortable and so hard to see out of that driving it around town, in any sort of traffic, feels borderline dangerous. There’s also the distinct sensation that you’re so low and so little that all those people in their SUVs won't see you.

Throw in the fact that it's so painfully, stupidly difficult to get in and out of and it's definitely not the sort of car you take if you're heading to the shops. I got so sick of its hard-edged annoyances at one stage that I became too grumpy to even take people for joy rides in it. I just couldn’t be bothered with the hassle, but then an inner-city suburb with high kerbs and even higher speed humps is not the Exige's natural environment.

The gearbox is a thrill a minute, as is the engine.

Making it even more of a challenge around town, at low speeds or in parking situations is the steering, which isn't so much heavy as wilfully obtuse. Doing a three-point turn is the equivalent of 20 minutes of bench pressing your own body weight. At least.

Out on a winding bit of country road, however, the steering becomes one of the best things about the car, because its pure, unassisted weighting feels so alive in your hands. There’s a sense of actually wrestling, or finessing it around corners that makes you feel a bit Ayrton Senna.

Indeed, the whole car comes alive, and starts to make some kind of sense, once you're on a smooth, perfect piece of tarmac. It is fast, noisy, thrilling, utterly and overtly involving, stiff of chassis and firm of ride, with brakes capable of pulling you up with indecent haste. It’s also, thanks to its low centre of gravity and mid-engined layout, beautifully balanced.

The gearbox is a thrill a minute, as is the engine, particularly once you explore the upper rev ranges, at which point the scenery really does become a scary blur out the ridiculously small windscreen.

Sure, you can't see anything behind you other than the engine, but what a lovely sight that is, and nothing is going to catch you anyway.

It does feel edgy, of course, and sharp, and it’s not as easy or refined to drive as some cheaper sports cars; an MX-5 makes for a far more pleasant companion. But this is an extreme Exige, a machine built by and for genuine enthusiasts.

And, above all, for the sort of people who will take it to a race track, which is where it both looks and feels completely at home.

Unfortunately, on public roads, it would be annoying more often than it would be thrilling, but the truly hardcore Lotus aficionados would never admit such a thing.

Unsurprisingly, considering it will sell fewer than 100 cars in Australia, Lotus has not had the Exige ADR crash tested, so there's no star rating. You do get two airbags, passenger and driver, as well as ABS, 'Hydraulic Brake Assist', 'Lotus Dynamic Performance Management', driver-selectable ESP with three modes, cornering brake control and EBD.

The GT63S E Performance is covered by Mercedes' five-year, unlimited-kilometre warranty, and you can pre-pay your service costs to keep the prices down.

Service pricing for the electrified model is yet to be confirmed.

Your Lotus comes with a three-year unlimited kilometre warranty and three years of roadside assist. A service costs $295, plus parts.