2004 G35 Coupe- Low Miles! on 2040-cars

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Infiniti Q50S getting G37's hydraulic steering for 2016

Sometimes, new technology doesn't make things better. Take the march of power steering technology as an example. Electrically assisted systems are in vogue at the moment for their ability to increase fuel efficiency, but tuning them to offer good feedback remains something of a dark art. Some automakers get it, but most don't. The previous hydraulically assisted setups just seem to be inherently more communicative when driven with enthusiasm. And it looks like Infiniti might be learning this lesson the hard way.
In talking with Keith St. Clair, the luxury brand's head of product planning, Car and Driver has learned that the Q50S is probably going to ditch its standard electrically assisted steering in favor of a hydraulic system derived from the old G37, a model soon to be renamed the Q40. The system should make the sedan more engaging behind the wheel, but it still won't help those who tick the option box for Infiniti's controversial Direct Adaptive Steering drive-by-wire system.
According to St. Clair, Infiniti's engineers have heard the complaints of critics and previous G37 owners about the Q50S model's electric steering system, and wanted to see what they could do. They didn't have to go far to figure it out - all it required was taking the steering rack off of a G37 and putting it onto the Q50S. After a little tweaking, "the car is a blast to drive," St. Clair reports. Now, the company is said to be fast-tracking the switch, and it could be ready for the 2016 model year.

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.

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