Though its nameplate has only been around since 2014, the Q70's roots stretch way back to 1990 and the debut of the Nissan Maxima-based INFINITI M30 Coupe. The M30 lasted only through 1992, but the M nomenclature was resurrected in 2003 with the introduction of the M Sedan. The M Sedan lasted until the end of the 2013 model year, which was when INFINITI changed its naming scheme and gave all passenger cars a "Q" prefix followed by a number that indicated the model's place in the lineup. As the lineup-topping sedan, the M became the Q70 in 2014.
What's New For 2015
The Q70 receives a light refresh that includes new front and rear fascias, a new grille design, new signature LED headlights, taillights and fog lights, mirror-mounted LED turn signals, revised interior trim, standard leatherette in place of the standard leather, revised wheels, and an available All Around Monitor. The final changes for 2015 include three new exterior colors: Hermosa Blue, Chestnut Bronze, and Graphite Shadow.

Choosing Your INFINITI Q70
The main aspect in your choice of a Q70 is deciding how much power you need. The base model comes with a plenty-competent 3.7-liter V6 that delivers 330 horsepower and 270 pound-feet of torque, while the optional engine is a 5.6-liter V8 with 420 ponies and 416 pound-feet of twist. Both engines use a seven-speed automatic transmission, and both have optional all-wheel-drive available.
After choosing the engine that suits you, there is a slew of optional packages to select from. They range from performance wheel, tires and brakes to super-premium items like semi-aniline leather and a surround-sound system.
Once you've decide on the power you need and the packages that suit you best, the decision process is rather easy. In fact, there are only four trim levels to choose from, and two of them simply add all-wheel drive to the mix.
Q70 3.7
The Q70 3.7 is the base model for the Q70 lineup, but it still includes plenty of premium features. It's list of standard features includes a 330-horsepower V6 with a seven-speed automatic transmission, 10-way power and heated front seats, dual-zone automatic climate control, the INFINITI Intelligent Key, a rearview monitor, a seven-inch color display, rain-sensing wipers, Japanese ash wood trim and a six-speaker audio system.
You also have several packages to choose from, including the Technology Package with a number of safety features; the complementary Premium Package with added features like navigation and a 10-speaker audio system; the Sport Touring Package with Bose surround sound and a power rear sunshade; the Deluxe Touring Package with semi-aniline leather and other premium materials; the Performance Tire and Wheel Package with 20-inch wheels and Sport brakes; and the Sport Package with 20-inch wheels, a unique fascia and sport-tuned handling bits. The Q70 3.7 starts at $49,850 before options.
Q70 3.7 AWD
The Q70 3.7 AWD is simply a Q70 3.7 trim with INFINITI's Intelligent All-Wheel Drive. Eligible for all of the same packages as the Q70 3.7, it bases at $52,000 before options.
Q70 5.6
The Q70 5.6 adds premium features like climate-controlled front seats, INFINITI Navigation, a heated steering wheel, leather seating, and a 10-speaker audio system. Under the hood, you'll find a 5.6-liter V8 with 420 horsepower and 417 pound-feet of torque. Oddly enough, all of the premium features that differential the 5.6 from the 3.7 -- excluding the engine -- are included in the Premium Package on the 3.7. Buyers of the 5.6 enjoy all of the same option packages as the 3.7, except for the Sport Touring. Prices start at $62,850.