Infiniti Q70 Performance
Most test drivers write that the 2015 Infiniti Q70 is one of the more agile cars in the class, although a couple dislike its numb steering. Some think it has a great balance of ride comfort and athleticism, though others note that the Q70 may not be the ideal choice if you're looking for a serene highway cruiser. The Q70's V6 provides adequate power, but the V8 delivers better acceleration, reviewers write. Auto journalists say the Q70 Hybrid has plenty of power, and it gets excellent fuel economy for the class.
- "The Q70 is a marvelous driving machine, striking the right balance between a comfortable ride and adept handling." -- AutoTrader
- "Infiniti left the Q70's powertrains alone for 2015 … focusing instead on making improvements to the sedan's throttle response, steering and suspension. But even with those enhancements, the Q70 still needs some polishing." -- Left Lane News
- "The 2014 Infiniti Q70 is a blast on the road. The standard V6 engine pulls strongly, the optional V8 is better, and the hybrid threatens to abolish once and for... all the cliche that electrically assisted driving slows things down." -- Kelley Blue Book (2014)
Acceleration and Power
The Infiniti Q70 and Q70L come with a 3.7-liter V6 that produces 330 horsepower. A 5.6-liter V8 that makes 420 horsepower (416 in Q70L) is optional. A seven-speed automatic transmission is standard. The 2015 Q70 with rear-wheel drive and the V6 returns an EPA-estimated 18/26 mpg city/highway, which is slightly lower than V6-powered rivals' estimates.
The Q70 Hybrid has a 3.5-liter V6 engine and an electric motor that combine to produce 360 horsepower. A seven-speed automatic transmission is standard. Fuel economy for the 2015 Q70 Hybrid is 29/34 mpg city/highway, which is excellent for the class.
Most test drivers write that the V6 has sufficient power, but some think that models with this engine aren't especially fast. Many prefer the swift acceleration of models with the V8, though a couple critics note that some rivals have more modern, powerful engines and are generally faster. The Q70 Hybrid has plenty of power, according to reviewers. The transmission doesn't always downshift quickly when more power is needed, but it does shift smoothly, critics say.
- "In a world where turbocharging is fast replacing displacement, I'm savoring every chance I get to lay into the 5.6-liter V-8. Infiniti retuned the Q70L's throttle response for 2015, and the linear power delivery from the 420-hp engine and its competent seven-speed automatic make for confidence-inspiring acceleration. Although when I later drove the V-6 its 330 hp seemed to be more than enough, the Q70 really deserves the effortless low-end thrust of the V-8." -- Automobile Magazine
- "We drove all three models. The V8-powered 2015 Infiniti Q70 5.6 is the one for power junkies, but we also found the V6 and hybrid models to be more than sufficient in acceleration and passing." -- AutoTrader
- "Not only is Infiniti's V-6 on the average side of things, but the V-8 is now officially underpowered. Again, everything is relative, and I'm talking about cars that this one competes with. Both of the Q70's engines are lacking mega-torque available from German competitors' force-fed engines. Even Cadillac has gotten into the boost game on the strength of the CTS Vsport, and its twin-turbo V-6 makes more torque than the Infiniti's big V-8." -- Motor Trend
- "The Q70's seven-speed transmission provides smooth shifts, but we found it reluctant to downshift during some passing situations." -- Left Lane News
Handling and Braking
The 2015 Q70 comes standard with rear-wheel drive, and all-wheel drive is available on non-hybrid models. The regular-wheelbase, non-hybrid Q70 is also available with a sport-tuned suspension. For the most part, test drivers agree that the Q70 is one of the more nimble cars in the class, regardless of whether you have the short- or long-wheelbase model, adding that the sport-tuned suspension further sharpens handling. Some reviewers note that the Q70's ride is comfortable, but others comment that the ride may feel too stiff if you're looking for a comfortable, serene cruiser. A number of critics also mention that there is little steering feel.
- "… the Q70L demonstrates a marvelous ride and handling balance that straddles athleticism and refinement. Rolling over the steep hills near beautiful Bear Mountain State Park, the 2015 Infiniti Q70L handles like a smaller car while deftly minimizing impacts. Infiniti's newly tuned steering, however, is uncommunicative and artificial feeling in either standard or sport mode, despite its precision." -- Automobile Magazine
- "The Sport Touring Package's taut suspension and active rear steering push the Q70 into BMW territory. The 20-in wheels and tires, and the firmer suspension, however, turn the Q70 into a car that enthusiasts will love. Luxury-oriented buyers will likely find it too harsh." -- AutoTrader
- "With the stiffer ride, a fair assumption would be that the Q70 would have more handling prowess, but the heavy and vague steering feel and the vehicle's perceived weight don't encourage spirited driving. While the car responds well to driver commands, it doesn't inspire confidence on a winding road. When it comes to ride comfort and driver engagement, competing sedans represent better choices than the 2015 Infiniti Q70." -- Edmunds
- "Models equipped with the sport suspension communicate more road feel, naturally, but at no point did the one we drove feel harsh, and it was always grippy and composed. On twistier sections of road, both long- and short-wheelbase models exhibited sure-footedness, and the well-weighted steering presented a modicum of feel." -- Car and Driver