Downsizing makes its way to the flagship Lexus sedan where the old V8 is gone to make room for an all-new twin turbocharged 3.5L V6. With over 400 horses, a quick-shifting 10-speed transmission, and the magical GA-L platform to make this the most fun big Lexus sedan we've ever driven. The 5th generation Lexus LS will undoubtably shake up the full-size luxury sedan segment. Europe should take notice once again.