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Meet the Nissan GT-R test driver responsible for 'Ring tuning

Ever wonder what it's like to be a manufacturer's development driver at the Nürburgring? We imagine it's pretty cool. After all, you get to spend your days zooming about the greatest racetrack on the planet in a vehicle that is usually months or more away from consumers. For Hiroyoshi Kato, whose actual title is Technical Meister, life is even better than your typical development driver, because he spends his days wringing out the Nissan GT-R Nismo around the Green Hell.
Kato-san has a long history with both Nissan and the Ring. He had a major hand in the development of the R32, R33 and R34 Skyline GT-Rs, having first come to the Ring nearly three decades ago.
His experience with the Nismo, though, is different than the other vehicles he's contributed to. As he explains it, there are real racers on hand to test the car on the track, like Formula One reserve driver Sébastien Buemi. Instead, Kato focuses on the track-to-road balance. Still, he has some truly interesting insights on the car and the track, including his surprise at turning a sub-eight-minute lap in his first outing. That, along with a few other things (one of which is an R34 being hustled about), make this a must-watch video from Nissan.

2015 Nissan 370Z Nismo

If you blinked, you missed the opportunity to pick up the last iteration of the 370Z Nismo, because after just a touch over a year of availability, Nissan is replacing it with this updated 2015 model - the third 370-based iteration from the brand's in-house tuner. Consider this version to be the 370Z's swan song. An all-new version is expected soon with a downsized turbo mill (something in the vein of a 240Z would not be impossible). That reality aside, the latest 370Z Nismo is a compelling package. It looks like a million bucks, takes a corner with verve, and gets belated tech goodies. Here are our impressions from a drive we took last week near Nissan's US headquarters in Tennessee.
Driving Notes
The Recaro seats are wonderful (shocker!). In fact, the interior in general has a much more strapped-down feel about it. A run-of-the-mill 370Z feels pretty great, although it's not a place for the big-boned. As with past Nismos, upgrades include contrasting colors on the faux-suede seat inserts, the gauge hood, the ten and two positions on the steering wheel, and a red centering stripe on the wheel. The upgraded materials are all nicely chosen and the cabin is a very sexy place to live - weirdly practical, too, considering the huge cargo area. Checking the "Tech" model option box brings a 7.0-inch nav screen in place of the upward swinging door over a storage cubby, a much-needed backup camera, an impressively good Bose stereo, and de riguer Bluetooth connectivity with audio streaming. Everything seems to work as advertised.

A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show