Infiniti Q50 vs Lexus IS200T

What's the difference?

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.

The Lexus range comes with a four year/100,000km warranty with roadside assist for the duration. Servicing is every 15,000km or twelve months, whichever comes first.

Sadly, there's no fixed or capped-price servicing regime, not even a pre-pay option like the stingy Germans. Lexus will only commit to indicative pricing, although the first service at 15,000km is priced keenly - it's free.

When you buy a Lexus, they don't like to let go of you. My father-in-law's original IS 200 is still fetched by the dealership - should he so desire - for its annual service. If he chooses to darken the dealership door himself, he'll drive out in a loan car. Nobody has ever stalked him at the dealership demanding he consider a new one.

The IS200t seems the pick of the IS bunch, despite pricing on par with a couple of the IS350s. It's a worthy alternative to the usual suspects, with its own look, feel and approach to luxury motoring. In fact, it's far more a luxury car than sports sedan, but manages to do both well. In the end, a BMW will edge it for handling and overall chassis grace, the Merc has that badge and the Audi is all-wheel drive and bang-up-to-date.

But none of them can touch the Lexus for after-sales service nor are any of them quite as well put together as the Japanese-built IS. It may not be as fast or as fun, but it's very, very good.

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.

The current IS is by far the most distinctive of the three generations. With a couple of exceptions, it is a terrific looking car. It looks long and low slung, like the best sporting sedans, with an almost Maserati-like approach to its proportions. The loud and proud Lexus spindle grille - the object of such derision when it first arrived - looks utterly fantastic and draws attention away from the odd, squished headlights.

it is one of most comfortable cars you can buy, for both front and (short) rear seat passengers.

Inside is less impressive, with a weird stacked dash and integrated screen. The materials are top notch, however and while the designers have tried to do something interesting with the dash design, there are better ideas out there they might want to consider next time around.

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.

The IS's cabin is probably the weakest point of the car, with limited storage for your bits and bobs. Front and rear seat passengers do get cupholders for a total of four, but the rear doors don't have bottle holders, limiting you to the two upfront.

On hot days like Sydney's 2017 summer, those cooled seats are heaven-sent.

The centre console bin is small and is the only place for your phone apart from the cupholders, which isn't an ideal spot, let's face it. The boot is a German-matching 480 litres and you can split fold the seats for more room.

Having said that, it is one of most comfortable cars you can buy, for both front and (short) rear seat passengers. The front seats are especially good and on hot days like Sydney's 2017 summer, those cooled seats are heaven-sent.

The IS range kicks off with the 200t Luxury at $59,340, closely followed by the hybrid 300h, the V6-powered 350 ($65,390) and then the $73,540 200t F Sport. Pricing then heads up into the mid-$80,000s for the IS350 Sports Luxury.

The 200t F Sport's almost $74,000 price tag fetches you a car with 18-inch alloys, dual-zone climate control, reversing camera, front and rear parking sensors, a hefty safety package, electronic dampers, auto LED headlights, auto wipers, electric heated and cooled front seats, digital instruments, sat nav, keyless entry and start, leather (some real, some not) interior, variable ratio steering rack and power everything.

The 10-speaker stereo is Mark Levinson branded and is controlled by Lexus' own connectivity and sat nav suite. The sound is fantastic, the control system less so. Commands come from a few shortcut buttons (good) and weird mouse-type arrangement on the centre console that is largely infuriating. The less said about the on-screen graphics, the better - they're low-res and on occasions, amateurish. You can connect via USB or Bluetooth but the app integration is limited. You also get an at-first unfathomable DAB+ radio.

Once on boost, the engine is smooth with a lovely flat torque curve.

Options are limited to $1500 for premium paint, which makes up eight out of ten colours.

Out of interest, $74,000 gets you a reasonably well equipped BMW 330i M Sport or Luxury Line and a few hundred dollars more will get you into a hybrid 330e M Sport. Audi will cheerfully sell you a loaded-up A4 quattro 2.0 TFSI and Mercedes might be tempted to sell you a C350e. Infiniti will probably throw themselves at you with a V6 twin-turbo Q50 Red Sport rocketship, or at the very least a V6 Hybrid Premium.

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 200t denotes a 2.0-litre turbocharged four-cylinder under that long bonnet, delivering 180kW and 350Nm to the rear wheels via an eight-speed automatic transmission. This translates to seven seconds dead to 100km/h for the 1680kg sedan, which isn't hanging around.

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.

Try as we might - and we did - we couldn't get at all close to the claimed combined fuel figure of 7.5L/100km. We didn't even hit the standard plus 30%, but we did get 12.2L/100km. That's a fairly solid miss.

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.

After having the good fortune to step out of the IS350 and into the 200t, it was immediately apparent that the 200 is the better car. For a start, it feels so much more nimble. Sure, it doesn't have the seamless urge of that silky V6, but the 2.0 turbo does a fine impression of a bigger engine. Once on boost, the engine is smooth with a lovely flat torque curve. If you're off boost, though, you're in a bit of trouble - the eight-speed is reluctant to downshift and needed prodding from the steering wheel mounted paddles on occasion.

As with just about every Lexus, the ride is impeccable and refinement virtually unmatched in the class.

From a driving point of view, the fundamentals are better - less weight over the front wheels meaning the steering feels better, it turns in better and it moves more fluidly, which is impressive because the 350 isn't a slouch. Even the dashboard is better. The 350 has a traditional two clock arrangement where the 200t has a single dial in the middle that is digitally remastered. Press a button and it slides to the side to provide extra info on your choice of the available data. It leaves a fair amount of black space but it's easier to read and doesn't suffer as badly from reflections.

As with just about every Lexus, the ride is impeccable and refinement virtually unmatched in the class. There's something about the way a Lexus knocks the edge of all but the biggest bumps, sails over speed bumps and handles imperfections that is hard to beat and hard to find unless you're spending really big bucks. The adaptive damping never feels like it's doing anything which is exactly the point - even when switching to Sport+, there's an ease to the ride without it feeling loose.

You'll barely know the engine is there, and the way the transmission slurs around the gears means non-stop serenity.

Standard safety kit includes eight airbags (including knee bags for front seat occupants), ABS, stability and traction controls, blind spot sensor, lane departure warning, rear cross traffic alert, brake assist and driver attention detection.

The IS scored the maximum available five ANCAP stars when it was re-tested in October 2016.

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.

The Lexus range comes with a four year/100,000km warranty with roadside assist for the duration. Servicing is every 15,000km or twelve months, whichever comes first.

Sadly, there's no fixed or capped-price servicing regime, not even a pre-pay option like the stingy Germans. Lexus will only commit to indicative pricing, although the first service at 15,000km is priced keenly - it's free.

When you buy a Lexus, they don't like to let go of you. My father-in-law's original IS 200 is still fetched by the dealership - should he so desire - for its annual service. If he chooses to darken the dealership door himself, he'll drive out in a loan car. Nobody has ever stalked him at the dealership demanding he consider a new one.