The LS full-size luxury sedan helped popularize the Lexus brand in the 1990s as a unique, comfortable and dependable product. These days, the popularity of the LS is waning, but the key pillars that forged its reputation remain. There are two models to choose from, starting with the LS 500 that is powered by a twin-turbocharged 3.5-litre V6 delivering 416 hp. Meanwhile, the more fuel-efficient LS 500h replaces the turbos with an electric motor and generates 354 hp.