The RDX compact luxury SUV is Acura's most popular vehicle. Unchanged for 2017, after undergoing several cosmetic changes last year, it's back with its naturally aspirated, 3.5-litre V6 generating 279 horsepower and 252 lb.-ft. of torque, sent to all four wheels by way of a six-speed automatic. Capable of transporting five people, the RDX can tow up to 680 kilograms (1500 pounds). The Technology and Elite packages enhance the basic RDX.