The Ram 1500 provides something for everyone with the choice of three cab styles (regular, Quad and Crew cabs), three wheelbases, 4x2 or 4x4 drive types, and 3.7-liter V6 or 4.7-liter V8 or 5.7-liter HEMI V8 engines. A multi-link coil spring rear suspension (in place of a traditional leaf spring suspension) improves ride and handling characteristics without sacrificing payload and towing capability. Standard safety features include side curtain airbags, stability control, traction control and trailer sway control. Heated and ventilated front seats, heated rear seats, heated steering wheel, power adjustable pedals, rear parking sensors, and a rear backup camera are available. Electronic and infotainment choices include a multimedia system with 30-gigabyte hard drive, navigation system, SIRIUS Backseat TV and a rear-seat DVD entertainment system. The RamBox cargo management system, available on the Crew cab, includes lockable, illuminated storage bins built into bed rails. The Ram 1500 was completely redesigned for 2009 model year and remains unchanged.