The RLX is a large luxury sedan sporting the most powerful engines offered in any Acura: a 310-hp 3.5L V6 (front-wheel drive, six-speed automatic and four-wheel steer!), and a new 377-hp hybrid drivetrain (with a pushbutton seven-speed dual-clutch automated manual). This one sends power to all four wheels thanks to a pair of electric motors mounted to the rear axles, a new twist on Acura’s SH-AWD where computers control each wheel separately.