Measuring 207.4 inches in total length, the 2012 Audi A8 L reaches out 5.2 inches longer than the standard A8 sedan. The 2012 Audi A8's standard adaptive air suspension deeply dampens any roughness on roads. Inside all 2012 Audi A8 models is a Bose Premium Surround Sound System with 20 gigabyte and dual-zone climate controls. Available on Premium package vehicles, the Audi A8 adds 22-way powered driver's seat with massage function. Mated with the quattro all-wheel drive system, standard power for the 2012 Audi A8 L is based on a 4.2 liter, direct-injected V-8 engine. Generating 372 horsepower, an 8-speed automatic transmission assures quick but smooth acceleration. The 2012 Audi A8 L includes standard safety protection of 8 airbags, the Audi parking system advanced with rearview camera, tire pressure monitoring system, and LED daytime running lights. For buyers requiring a greater level of protection when traveling, the 2012 Audi A8 L can also be custom-fitted from the factory in a High Security package. Reinforced in armor-quality materials, the A8 L High Security edition includes a two-way communication system between the outside and inside. The 2012 Audi A8 L High Security edition will be powered by either the 4.2 V-8 or a 500 horsepower 6.3 liter W-12 powerplant.