Aston Martin Vantage vs Infiniti Q50

What's the difference?

It’s either a comfortable race car or a bonkers grand tourer, but it’s that best-of-both worlds positioning that makes this new Vantage so appealing. Think of it as like a supercar for proper grown-ups, and one you don’t need to grunt and groan to extract yourself from.

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

The Q50 Red Sport is a premium sedan that's great value, with a cracker of an engine. While Infiniti has improved the ride and steering, it still feels to me that the engine is too powerful for the wheels and chassis to handle. But if you're looking for something of an untamed beast, this car could be for you. Just don't say we didn't warn you.

Ok, so the first thing you notice is this massive grille, which I now know is exactly 38 per cent bigger than before. That’s mostly for cooling, sucking in great lung-fulls of air – and any stray pets unlucky enough to wander into its path, I’d imagine — to keep that engine humming.

That air has to go somewhere, and the new bonnet vents complete the engine-cooling.picture.

Then there are 21-inch alloys are wrapped in performance rubber, and I love the swollen haunches at the rear tyres, giving the Vantage a mean and menacing vibe. At the rear, a very new and very loud quad-exhaust completes the picture.

In the cabin you'll find nothing in the way of hand-me-down Mercedes switchgear, which makes for change. This is all Aston Martin, and actually it all feels really nice.

The twin-screen setup looks tech-savvy and premium, the materials are all nicer than you'd find in something more track-obsessed, and even the optional race seats managed to be both snug-fitting and comfortable.

The Q50 Red Sport looks cranky from front on, which I like in a car. Yes, the grille is simplistic and gaping, the nose is a bit bulbous, and sure, side on the car looks like a Lexus IS 350, but those rear haunches and the aggro body kit with its front splitter and boot lid spoiler make for an impressive looking four-door sedan.

The update brought restyled front and rear bumpers, those red brake calipers and the dark chrome 20-inch rims and new LED tail-lights.

Inside, the cabin is an asymmetrical paradise (or hell, if you're a bit OCD like me) full of sweeping lines, angles, as well as different textures and materials.

The red stitched quilted leather seats are an addition that came with the update, so is the new steering wheel and the ambient lighting.

The 'Sunstone Red' colour of our test car is also a new hue which looks a bit like Mazda's Soul Red. If red is not you, there are other colours – hope you like blue or white or black or grey because there's 'Iridium Blue', 'Midnight Black', 'Liquid Platinum', 'Graphite Shadow', 'Black Obsidian', 'Majestic White' and 'Pure White'.

The Q50 has similar dimensions to the IS 350: both are 1430mm tall, the Infiniti is 10mm wider at 1820mm,  120mm longer at 4800mm, and has a wheelbase that's 50mm longer at 2850mm.

You’ll be shocked to hear that Aston Martin didn’t dedicate too much of its limited track time to extolling the practicality perks of its new Vantage, mostly because there simply aren’t that many of them.

But the most obvious one, I think, is that most of the people in the market for a $400k-plus vehicle in this category are likely to be, well, of a certain vintage, and it’s for these people that the more traditional layout of the Vantage will no doubt appeal.

See, the engine is up front, and the doors open in the usual fashion, making getting in and out of the cabin easy, and free of the human-origami antics sometimes required to climb in and out of a scissor-door supercar.

But there have been practical improvements made to performance here, too. There’s 30 per cent more power, 15 per cent more torque, new cooling, better aerodynamics, retuned suspension and anti-roll tech, new brake booster tuning, improvements to the ESP system, more body stiffness. And it goes on.

The Q50 Red Sport is a five-seat four-door sedan and is vastly more practical than its two-door Q60 Red Sport sister, in that I can actually sit in the back seat. The Q60's coupe styling looks amazing, but the sloping roofline means headroom is so severely limited that it reduces the rear seats to a place to throw your jacket.

True, I'm tall at 191cm, but in the Q50 Red Sport I can sit behind my driving position with legroom to spare and more than enough headroom.

Boot space is good at 500 litres, which is 20 litres more than the luggage capacity of the IS 350.

Storage throughout the cabin is good with two cup holders in the rear centre fold-down armrest, two more up front and bottle holders in all doors. A large centre console storage bin and another big storage area in front of the shifter are great for keeping junk under control and your valuables covered.

Maybe sit down for this next bit. The Q50 Red Sport lists for $79,900. Are you okay? Do you want a moment? Remember, though that only seems like a lot because it's not a Benz or a BMW. Truth is the value is pretty good – better than a German car of the equivalent size and grunt.

Look at the standard features list: 8.0-inch and 7.0-inch stacked touchscreens, the 16-speaker Bose 'Performance Series' stereo system, digital radio, road noise cancellation, sat nav, 360-degree camera, leather seats, power adjustable from sports seats, dual-zone climate control, proximity key, sunroof, auto wipers and adaptive LED headlights.

The 2017 update brought new standard features to the Red Sport including, red stitching on the seats and dash, quilted leather seats, new 19-inch alloy wheels and red brake calipers.

Don't forget that the bang-for-buck factor is strong with the Red Sport, too. In that nose is a twin-turbo V6 that makes almost as much grunt as the BMW M3 for about $100K less. Even the 340i, which Infiniti says is a Red Sport rival, is $10K more. Truth is though, the Lexus IS 350 is the real rival to the Q50 Red Sport.

The 4.0-litre twin-turbo V8 is still borrowed from Mercedes-AMG, but this is the new-generation unit, making 489kW and 800Nm. It gets modified cylinder heads and bigger turbos, helping generate the extra grunt.

That’s fed through an eight-speed ZF automatic and channeled through to the rear tyres. The race to 100km/h? That 3.5 seconds. Meanwhile, the flying top speed is around 325km/h.

Inside the Q50 Red Sport's nose is a 3.0-litre twin-turbo V6 petrol engine and it is a beautiful thing. To me this car is piece of technologically sophisticated jewellery that cradles a precious gem that pumps out 298kW/475Nm.

But I have my concerns... you can read about those in the driving section.

Shifting gears is a seven-speed automatic which delivers drive to the rear wheels.

There’s the official figure, which is 12.1L/100km on the combined cycle, and then there’s the real-world figure. It’s not really fare to judge fuel use when you’ve just stepped off a racetrack, but rest assured it was a large number, which is to be expected really.

The Aston’s 73-litre fuel tank prefers 98RON fuel, too.

Infiniti says the V6 petrol engine in the Q50 Red Sport should use 9.3L/100km if you're using it on a mix of highways, urban streets and country roads. We only had the Q60 Red Sport for 48 hours and after a couple of days of Sydney city commutes and a trip to the Royal National Park our trip computer was reporting 11.1L/100km.

It's funny, I never felt like the old Vantage wanted for power, but now I suddenly wonder how we ever made do with it. This feels like the engine and the outputs that should have always been, such is the way it suits the nature of Aston’s most performance-focused model.

Everything is about the driver here. From the suspension tune to the gearbox mapping and the increase in stiffness everywhere. You’re supposed to feel like the main character, and you do.

Aston Martin have come under fire in the past for delivering cars that are a treat to look at, but didn't quite deliver the drive experience to match the appearance, and it's something the brand says it is actively rectifying with with the Vantage, and the Astons that will follow it.

The mission, it says, is to be spoken of in the same sentence as the Italian supercar makers when it comes to delivering driver engagement, and this 2024 Vantage is a considerable leap in that direction.

It is, above all else, fun. From the multi-stage ESP settings that you can pair to your bravery, to the retuned and raucous exhaust and the blistering acceleration.

More than that, it feels light and lithe on a racetrack, and super communicative, the front wheels talking through your wrists, and the back tyres through, well, the bit of you that hits the bottom half of the racing seat...

It is plenty fun, right across the park. The power is immense, but somehow it doesn't feel terrifying, partly because you're so dialled-in to the drive experience, and partly because the carbon brakes fitted to our test car were able to slow the Vantage so savagely it's as though we'd dropped anchor out the back window.

The Vantage does have a split personality, though, and it's one that really shows itself once you venture out onto the road. It's quiet, comfortable even, at suburban speeds, leaning more into grand tourer than bonkers track-day special.

The only downside being that, should you sit behind the wheel long enough, it becomes easy to forget you're driving something "super" at all. Well, until your right foot finds its way back to the accelerator, that is...

Perhaps the biggest complaint we had about the previous Q50 Red Sport, which launched in 2016, was that it felt as though the chassis wasn't up to the amount of grunt running through it, and those rear wheels struggled to transfer the oomph to the road without losing traction.

We experienced the same issue again in this new car. I was breaking traction, not just in 'Sport+' and 'Sport' modes, but in 'Standard' and 'Eco', too. That was happening without pushing it hard and with all electronic traction and stability aids on.

If I was 18 I'd declare to the world I'd found my dream car - something that always wants to 'light 'em up' given half a chance. But like that one mate who always gets into trouble on a night out it's only funny when you're young.

A truly great performance car is planted, balanced and able to deliver the grunt to the road effectively. The Nissan R35 GT-R is the perfect example – a brilliant piece of machinery, a weapon of a performance car and with a chassis matched perfectly to its engine.

And that could be the issue with Q50 Red Sport - that engine feels overpowered for the chassis, and wheel and tyre package.

We also felt the previous Q50 Red Sport's ride, with its constantly adapting 'Dynamic Digital Suspension', was overly busy. Infiniti says it has developed the suspension system further and it does feel as though the ride is more comfortable and composed.

Steering was another area that we weren't overly impressed with when we drove the previous car. Infiniti's 'Direct Adaptive Steering' (DAS) system is super sophisticated and was the first in the world not to have any mechanical connection between the steering wheel and the wheels – it's all electronic.

The new Q50 Red Sport uses the upgraded 'DAS 2' and while it feels better than before, it's only in Sport+ mode that it seems most natural and accurate.

The Q50 was given the maximum five-star ANCAP rating in 2014 and the amount of advanced safety equipment which comes standard on the Red Sport is impressive. There's AEB, that works forwards and when you're reversing, forward collision and blind spot warning, lane keeping assistance and moving object detection.

There are two ISOFIX points and two top tether anchor points in the back row, for child seats.

The Q60 Red Sport doesn't come with a spare tyre because the 245/40 R19 tyres are run flats, which means even after a puncture you should be able to keep driving for about 80km. Not ideal in Australia where distances are seriously vast.

Aston Martins in Australia are covered by a three-year/unlimited-kilometre warranty, but you can extend that for one or two years, at a price.  You’ll be visiting the service centre annually, too.

The Q50 Red Sport is covered by Infiniti's four year/unlimited kilometre warranty with servicing recommended every 12 months or 15,000km.

Infiniti has a scheduled servicing program which will cost $1283 (in total) for three years.