Audi Q5 vs Infiniti Q50

What's the difference?

Ever since returning from the launch of the new Audi Q5 I've been looking at old ones and thinking how lumpy and dumpy they look by comparison. The new Q5 will be an adornment to our roads in styling terms, it's a tour de force of interior design and its engines might well be the last barking gasp of its kind. So it's definitely worth a look if you're in the mid-size SUV space. And you don't want an EV yet.

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.

Other than the closely related Porsche Macan, and maybe an Alfa Romeo Stelvio, it's hard to think of a better, smoother looking SUV than this new Audi Q5, with its revised Singleframe grille flanked by vertical air curtains, that look a bit like gills.

Audi claims the Q5 has "perfect proportions", which is bold, but it certainly looks sleek rather than bulky, with a nice silhouette and dynamic rather than Mumsy appeal.

The rear is particularly attractive with a three-dimensional light strip that ties it all neatly together. It's a more refined, sharper look than the Q5 it replaces.

Inside, of course, Audi has either taken its interior to another level of futuristic fabulousness, or put too many bloody screens in, all of which are too big, depending on who you ask. And how old they are. Kids will love it, however.

Interestingly, while every car company ever claims that its cabin has a cockpit feel, focusing on the driver, the Q5 really does. So much so that there's a raised edge in the centre console that quite noticeably cuts the driver off from the passenger. In the other front seat you do feel a bit removed, as if you're meant to leave the driver to it, which might be why you get your own screen to play with.

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.

Audi is talking up the little things with the new Q5, like the fact that there's a much larger storage space under the centre armrest now - and it's true, you can lose your car key in it - plus numerous other storage areas, and an inductive and cooled charging tray so your phone won't get cooking hot and shut off, with 15 watts of power.

In exciting news for screen addicts/children, Audi is also very excited about its uprated USB-C ports, which can charge at up to 60 watts through the two in the front, while the rear passengers also get two more, rated at 100 watts. Which sounds like a lot, Audi says it's enough to run your laptop.

The new Q5 also gets a very useful adjustable rear seat, which can be slid lengthways and tilted, providing either more passenger space and less boot room or vice versa. With the rear seat down you get 1473 litres, but thanks to the new sloping rear design you get slightly less room in the Q5 SUV, with 520 litres behind the second row. The SQ5 gets even less at just 470 litres.

Another handy feature is that the snappy luggage cover can be stowed in a special designed compartment under the boot floor. Clever.

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.

Does it seem strange to anyone else that a company so focused on reducing emissions through promoting EVs is still offering diesel engines? The reason, of course, is that so many Europeans still want them, because fuel is so damn expensive there, and yet Audi Australia says it will also offer them here.

That's where the range now starts, with the TDI diesel version coming standard with all-wheel drive, or Quattro, with outputs of 150kW/400Nm. Like every car in the new Q5 range, it uses a seven-speed dual-clutch gearbox, which is excellent.

Every Q5 also uses MHEV technology to reduce emissions and increase performance, which means it gets a 48-volt electrical system to support its combustion engines. This system means you start up, in most conditions, in silent electric mode, and you can even manoeuvre and park the car using only electricity, most of the time.

The electrical system is connected to a Powertrain Generator which provides additional torque of up to 230Nm, and a mere 18kW of extra power. Every little bit helps I guess.

Basically, it's a mild hybrid, meaning you get a mild amount of help, and the full plug-in hybrid Q5s are coming soon. Later this year.

Stepping up from the diesel you can have a 2.0-litre TFSI four-cylinder petrol engine, with either front or Quattro all-wheel drive and making 150kW/340Nm.

The range-topping all-wheel-drive SQ5 gets a very enjoyable 3.0-litre six-cylinder TFSI petrol engine with 270kW and 550Nm. It feels like more kilowatts, honestly.

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.

The MHEV technology is supposed to provide some boost to fuel economy but the figures aren't super exciting. You'll be getting a claimed 5.9 litres per 100km from the 2.0 TDI diesel, or 6.5L/100km from the 2.0 TFSI petrol.

The V6 is going to cost you more at the pump with a claimed figure of 8.1 litres per 100km. You might want to wait for the PHEVs.

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.

While the new Q5 might feel classier, techier and generally more expensive and Q7/Q8-like on the inside, it's pulled off an even more impressive feat in the chassis department, which no doubt owes a lot to the entirely new PPC platform, because it feels more like a powerful Q3 to drive than the Q5 of old.

That's not a comment on interior or load space, it's just that it feels smaller and more spritely on the road. It turns in better, holds its line better and resists gentle understeer right up to the point where you wonder whether your co-driver has lost his mind or is trying to kill you both.

Seriously, the SQ5 can properly get up and boogie in Sport mode (Audi says one of the things it's proudest of with the new car is how much more noticeable the range of difference is between the relaxed, or 'Balanced' and 'Comfort', modes and the more aggressive ones) and you really have to be going beyond sensible to find the edge of grip.

The SQ5's V6 also makes the kind of noises that now sound weirdly wonderful in an Audi, when so many of the new offerings are electric. Choose to shift the gears yourself and this can be a properly involving machine, and quite impressive for an SUV.

What separates it from the kid of fun you could have in its cousin, the previous Porsche Macan with petrol power, is the steering. It's not terrible, and it is sharp, but it just lacks a bit in the feel and muscle department. Being generous you'd say it's easy to drive but you just know that if this had an R badge the steering would be so much better, and closer to Porsche and BMW.

The diesel TDI model does not make glorious noises, and the whines and groans it does make - which seem loud by Audi standards, it's usually very good at quietening its diesels down - do not encourage you to shift gears yourself or drive it in a sporty fashion. It is a workhorse variant, with plenty of torque, and for a certain kind of customer who cares not for sportiness or excitement I'm sure it's a fine option.

One thing I did not expect to be doing on an Audi Q5 launch is clambering up and over a rock strewn mountain on properly rutted and rough gravel tracks, but that was an option here so I took the 2.0 TFSI on the optional off-road adventure and I must say I was both surprised and impressed.

The Q5 is not a mountain goat, or a Land Rover, but despite feeling like I was doing the gardening in a shiny suit, I managed to traverse a track that felt too serious and intense for a soft roader, and did so with ease and in comfort. The air suspension raises the Q5 a full 45mm in Off-road mode, so ground clearance was no problem - nor did I encounter any boulders - but the way the Quattro system dealt with the dirty stuff was impressive.

Overall, I can see that this TFSI model is the sweet spot in the range in terms of value and performance, and it really is all the Q5 you could need. It never feels underpowered, unless you've just stepped out of the SQ5, and you get all the benefits of the chassis and handling upgrades.

Personally, though, I'd have the SQ5 just for the rorty V6 noises alone. It feels like something new, but also the end of something wonderful.

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.

All Audis are now covered by a five-year, unlimited-kilometre warranty, up from its recent offering of three years, which is better, but could be better still.

There's no news on what servicing arrangements will be because the new Q5 doesn't lob until Q3, but in general the brand will let you prepay your services, required annually, for the first five years, with the regular Q5 currently billed at $3140 and the SQ5 billed at $3170.

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.