The R8 is Audi's halo sports car, intended to compete with the Porsche 911 Turbo. Based loosely on the semi-exotic Lamborghini Gallardo, the all-aluminum R8 is more practical, and much less expensive. A mid-mounted 420-bhp 4.2L V-8 drives all four wheels via a 6-speed manual or automatic. Audi claims a 0-60 MPH time of 4.4 seconds and a top speed of 187 MPH. The quattro AWD system has a 44:56 F:R torque bias to improve handling. Standard equipment includes 19-inch alloy wheels, adjustable magnetic ride suspension, LED running lights and taillights. Available options such as a 465-watt Bang & Olufsen audio system, carbon fiber exterior "sideblades", and upgraded leather interior allow owners to customize their R8.