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2017 Infiniti Q60 Coupe debuts with 400-hp V6

Infiniti killed it with the G35 Coupe in 2002, its second act being the G37 in 2008. The third act has officially begun, the 2017 Q60 Coupe launches today at the 2016 Detroit Auto Show. It hasn't strayed far from the concept shown a year ago, the major tweaks being government-approved headlights and side mirrors. Without discussing numbers, Infiniti says the new car is lower and wider than the current Q60, with a lower center of gravity, and it is more powerful and efficient. Much has gone on with the rolling stock, too: tighter wheel gaps, staggered tires on some models, wheels designed to absorb road vibration, and optional 20-inch alloys available for the first time. In the US, there are two engine choices with three levels of output. The twin-turbo 3.0-liter V6 comes with either 400 horsepower and 350 pound-feet of torque, or 300 hp and 295 lb-ft. In the US that will mean a boost of 70 hp and 80 lb-ft over the 3.7-liter V6 in the current car, and Infiniti estimates a combined fuel economy rating of 22 mpg. The 300-hp unit has a provisional rating of 23 mpg, the increased efficiency down to bodywork shaping and an active shutter behind the grille. A direct-injected, 2.0-liter, four-cylinder turbo is the second engine, getting 208 hp and 258 lb-ft and an estimated 24 mpg in the US. All engines will shift through an adaptive seven-speed automatic transmission. G'bye, manual gearbox. A Drive Mode Selector can dial through six settings, the Customize option throwing up three more individual choices to get the most from the updated internals. The V6 models can be optioned with Infiniti's second-generation Direct Adaptive Steering and brand-new Rack Electronic Power Steering that claims to provide more linear assistance. The four-cylinder comes with a speed-sensitive rack-and-pinion setup. Revisions to the base suspension include relocated shock absorbers among a new link layout, and modified shock tuning and bushings. Above that there's a brand new Digital Dynamic Suspension that will come standard on the Sport trim, now with adaptive dampers. Both units should have improved performance thanks to stiffer crossmembers. Finally, the cockpit gets dressed in one of three trims depending on the model, with aluminum or black wood at the entry-level end, carbon fiber at the other end, and silver glass fiber for buyers who choose the white or red leather.

NHTSA Probes Nearly 400,000 Infiniti, Honda Vehicles Over Steering Faults

As many as 391,000 vehicles from Honda and Infiniti may eventually need to be recalled as a result of two, separately announced Preliminary Evaluations from the National Highway Traffic Safety Administration to ascertain the scope of the potential safety hazards. In one of the queries, NHTSA is looking into 24 reports from drivers of the 2013 Honda Accord who say they had total loss of their power steering or experienced a sudden increase in the necessary effort to turn the wheel. In four cases, the problem may be linked to crashes. According to the claims, 13 people reported seeing a warning message during the failure. Turning off the car and restarting it would fix the issue in some cases. If a recall is necessary, it could affect an estimated 374,000 Accords. The second investigation is much smaller in scope. The safety agency is investigating the 2008 Infiniti EX35 after two complaints of the steering wheel shaft separating and the vehicle losing the ability to steer. Both reports say the steering became loose when driving and then completely failed once the vehicle was stopped. A recall for the problem would affect an estimated 17,000 vehicles. Recalls Honda Infiniti Safety NHTSA steering

Infiniti Q50 steer-by-wire system took 10 years to develop [w/video]

Infiniti's Direct Adaptive Steering (DAS) is quite a novelty - the system employs no physical connection between the steering wheel and the front wheels under normal circumstances and instead relies on a computer, clutch and steering-angle actuator to guide vehicles down the road with input from the driver.
In our First Drive review of a 2014 Infiniti Q50 equipped with the system, we weren't overly impressed by the artificial feedback. But we can't help but be impressed with how long Infiniti spent on its development: a full 10 years, according to Autoline Daily in the video report below. A staggering 70 percent of the research and development time spent on DAS was devoted to getting the steering feel right, and unfortunately, our first impression suggests their results still leave something to be desired, as we found it lacked the sporty feeling a sport sedan should have.
The weight of DAS is comparable to that of a conventional steering system due to its complexity. For example, three ECUs are used in the first-generation DAS system to ensure there's never a loss of steering, but Infiniti is refining the technology and is working to simplify it to reduce weight. One day Infiniti hopes that only one ECU will be needed to control DAS. We just hope it doesn't take the Japanese automaker another ten years to get the steering feel right.