2016 Infiniti Q50S comes with 3 liter twin turbocharged V-6 in VR30 as base model producing 300 horsepower and Red Sport model producing 400 horsepower. Both VR30 and Red Sport are identical in terms of engine, block and heads. Red Sport 400 hp turbo spins at 220,000 rpm with 14.7 psi boost. Clocks 4.5 second to reach to 60 mph from zero, quicker than Cadillac CTS Vsport and BMW 340i. Redline touches at 7000 rpm where VR looses smoothness, while at low rpm turbo lag remains almost absent and engine provides excellent impression. EPA is 20/26 mpg city/highway rating. Takes 165 ft to stop from 70 mph. Infinity refers Direct Adaptive Steer($1000) as steer by wire system in Red Sport model, where from center stack menu, can set steering ratio and effort to one of three modes standard, sport and sport plus.
Steering response can be altered in Sport and Sport Plus mode with sub-modes in form of default, dynamic and dynamic plus. But we found sport plus providing best response when set to default, while standard mode remains numb despite electrically assisted steering system.
Dynamic and dynamic plus sub modes makes steering drunken, while smooth transition is felt while center to turning. There seems disconnection between steering effort, loading and feedback to driver. Steering effort get build up quickly and do not become less, but this steering system is generation away to make driving a fun.