The 2013 BMW X5 is part of the vehicle's second generation. It is available with four engine options: a 300-hp turbocharged inline-six, a 400-hp twin-turbo V8, a 265-hp turbodiesel six-cylinder, and a roaring 555-hp twin-turbo V8 for the high-performance X5 M model. All versions come with an eight-speed automatic transmission. The X5 is primarily a rear-wheel-drive vehicle but is available with an intelligent all-wheel-drive system. The 2013 X5 is offered in several trims: 35i, 35d, 50i, and X5 M. It boasts a luxurious interior with standard features such as a 10.2" display with iDrive interface, HD radio, and a panoramic sunroof. Safety features include stability and traction control, adaptive brake lights, and BMW Assist emergency communication system. For 2013, a M Performance Package was introduced, adding more power and an enhanced exhaust note to 35i and 50i models.