The rear-wheel-drive Q45 comes with a new 4.5-liter twin-cam V8 producing a very healthy 340 horsepower (up from 266) and 333 foot-pounds of torque. The transmission is a five-speed automatic with a manual shift mode.It's available as one model, which retails for $50,500.
High-end electronics are standard, including traction control (TCS), Vehicle Dynamic Control (VDC), Electronic Brake Force Distribution (EBD), tire pressure monitors, high-intensity xenon headlights, and Voice Control for the climate control and eight-speaker Bose 300-watt audio system, including a six-disc CD changer.
Major options include a Navigation Package ($2100), which uses a DVD-driven system with seven-inch LCD screen and 3D Birdview of the map on the screen; a Sport Package ($1500), including a tightened active damping suspension and 18-inch, eight-spoke wheels with low-profile tires; a Sunshade Package ($500), including a power rear window sunshade and manual rear door sunshades; full-size spare tire and wheel ($180); and heated front seats ($450).