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Infiniti Q70 adds long-wheelbase model, fresh looks for 2015

After all the work done for the Q50, Infiniti has finally given some attention to its flagship sedan, the Q70 (or, for those that refuse to use the brand's latest nomenclature, the M). While the refreshed sedan sports a few visual tweaks, the big bit of news is that it's the first vehicle in its segment to offer both long- and a short-wheelbase options (keep in mind, both BMW and Audi offer LWBs in China, but not in the US).
Infiniti has stretched the standard car's 114.2-inch wheelbase to 120.1 inches, lengthening the car 7.3 inches overall. Nearly the entire wheelbase increase is dedicated to rear-seat legroom, with a substantial increase of 5.6 inches overall. As for the effect the stretching had on the Q70's looks, well, we actually think it might look better with the longer wheelbase.
It's a nice change of proportions that is complemented by the fresh looks of the facelifted Q70. New head and taillights are the biggest changes, with full LEDs in the back and LED accents in front. There's certainly a bit of Q50 in the front, thanks to both the headlights and the new "double-arch" grille, complete with mesh-finish inserts. In the cabin, material quality looks to remain impressive, with Infiniti's cool silver-dust wood trim being shown off in the press images. Outside of that, interior changes are kept to a minimum.

2016 Infiniti Q50 Eau Rouge Prototype [w/video]

It only takes about half a lap of the Millbrook Proving Grounds for me to become convinced that Infiniti must build this car.
The sedan I am piloting around the English circuit is a working prototype of the Q50 Eau Rouge Concept that made its world debut at the 2014 Detroit Auto Show earlier this year. As a refresher, the exquisitely painted, burgundy metallic, four-door show car is based on the production Q50, enhanced with Infiniti Red Bull Racing-inspired carbon-fiber bodywork, aerodynamic upgrades and - as we would come to learn at the Geneva Motor Show a few months later - fitted with a beastly twin-turbocharged engine shared with the parent company's spectacular Nissan GT-R.
Despite lacking the concept's gorgeously expensive paint, the vinyl-wrapped red prototype seen here is much more appealing than the static concept, as it is mechanically complete - it can be driven - thus explaining why I have traveled one-third of the way around the world to test this enthusiast-tuned, one-of-a-kind machine at one of Europe's premier testing facilities.

The yin and yang of the 2017 Infiniti Q50 Red Sport 400

When we first drove the Q50 Red Sport 400, Infiniti had the car out at a prepared slalom-and-cone course in a large, open parking lot. The car was stacked up against another Q50 without the Direct Adaptive Steer steer-by-wire system, and the course was designed to show that the DAS-equipped Red Sport 400 (it's a $1,000 option) required less steering input to master the same course. With all due respect to Infiniti, which is invested in this unfortunate system and has been working hard to revise it, the comparison doesn't make a lot of sense. The non-DAS Red Sport 400 has a steering ratio of 15:1 in RWD and 16.7:1 in AWD forms. The DAS system can vary between 12:1 and 32.9:1 in RWD and 11.8:1 to 32.3:1 in AWD flavors. At its extremes, the DAS system's ratio is vastly different than the fixed-ratio cars. So sure, with a super-quick steering ratio available, the DAS driver's going to do less work. It's all in the gearing. Does this mean it's better, that the steering feel is more natural, that it's easier to hustle quickly? The amount the driver saws at the wheel isn't an indication of that, necessarily. After a few days in a rear-drive Red Sport 400, I'm saying that the spooky disconnection between the driver and the front wheels would be a severe deficit to a driver on a real autocross course. It's not like the DAS system is choosing bad ratios within its range, it's just not supplying the feedback to make it enjoyable. Knowing what your front tires are up to is critical. I can hear you saying right now, "But what Q50 Red Sport 400 owners are going to autocross their cars?" Sure, but it was just a means to an end: showing off the DAS in a good light. And in that case, it probably did. The thing is, in isolation, not back-to-back with a non-DAS car with a slow steering ratio, the DAS system has the same issues it's always had: It simply doesn't feel natural. It doesn't feel intuitive. There doesn't seem to be any real advantage over a slightly quicker rack. I don't hear about people making buying decisions based on how much work they have to do sawing at the wheel, do you? So, that's one side of the Q50 coin – one that's hard to ignore if you're an enthusiast and steering feel is an important connection between you and the vehicle you just dropped a large hunk of change on, and will be spending a lot of your time in. The other is that there's a really compelling reason to drive a Red Sport 400: The 3.0-liter, twin-turbocharged V6 is a monster.