A list of best luxury full-size sedans would be nothing without the Lexus LS – a car designed to take directly on the German premium trio. It’s a tech-heavy vehicle with a 3.5-liter biturbocharged V6 under the hood, good for 415 hp (309 kW) and 442 lb-ft (599 Nm) of torque, and mated to a 10-speed automatic transmission. 0-62 mph (0-96 kph) sprint? A decent 4.5 seconds.