Audi A8
This high-end luxury car available in regular (A8) or stretched (A8L) wheelbases exists in six versions: the TDI (240-hp,407 lbs.-ft. 3.0L turbodiesel V6), the 3.0T (310-hp, 325 lbs.-ft. 3.0L supercharged V6), the 4.0T (435-hp, 442 lbs.-ft. turbocharged 4.0L V8), the A8L 6.3 W12 (500-hp, 463 lbs.-ft. 6.3L W12) and finally the sporty S8 (520-hp, 481 lbs.-ft. 4.0L V8). New for 2015: styling tweaks, higher power ratings and a new heads-up display.