New & Used Infiniti Q40: In Depth
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The Infiniti Q40 is a V-6-powered, mid-size sport sedan that's offered in rear-wheel-drive or all-wheel-drive versions. It's one of the most entertaining-to-drive sport sedans on the market, hidden behind some rebadging that's potentially confusing, if not downright confounding.
Though the name sounds similar, the Q40 isn't a new version of Infiniti's dead-and-buried flagship Q45. Instead, it's basically a rebadged version of the former G37 sedan, wearing a different nameplate and given an extension of a year or two past its original departure date. It comes in below the price of the Q50, which was supposed to be the G37's rightful replacement, offering the Infiniti badge at a discount.
Offering up the same formula as the G37 Sedan, however, isn't bad at all—provided you're not attached to the latest in-car technology. With a 328-horsepower, 3.7-liter V-6 and a quick-shifting seven-speed automatic transmission, the Q40 is fundamentally quick and responsive; meanwhile excellent steering and firm suspension tuning bring great driver control, with dynamics and poise that truly make it one of the best-handling sport sedans at any price.
Despite the age of its sheetmetal, the Q40 still holds up today. This is in part due to the fact that the design was slightly ahead of its time when it was introduced doe 2007. The interior is a different story, looking very obviously a generation behind the rest of today's Infiniti lineup. The dated look is most obvious when you compare the Q40 to the newer Q50 sedan, the model that was supposed to replace the old G37.
The Q40 is a great driver's car, but there are plenty of drawbacks, many of them for the same reasons that make it so dynamically great. The cabin is quite tight, and back-seat room is definitely not abundant. Ride quality is firm, bordering on punishing if you live around roads ravaged by winter storms, and road noise from coarse surfaces is louder than pretty much any other luxury-badge sedan we can think of.
Standard features on the 2015 Infiniti Q40 will include leather upholstery, eight-way power heated front seats, Shodo aluminum trim, electroluminescent gauges, the Intelligent Key system, a Bluetooth hands-free calling interface, and 17-inch alloy wheels. Major options on the Q40 include a Bose Studio on Wheels system, a rearview camera system, and a hard-drive-based navigation system with voice recognition.
The Q40 may be bench-sitting for 2015, with a new, smaller model waiting in the wings. Or the Q40 badge might be fleeting. We'll update this page as soon as Infiniti gives us a better idea of why it exists.