For 2018 the WRX STI's Driver's Control Center Differential went fully electronic, letting the driver adjust how power is shared between the front and rear wheels, and yellow six-piston Brembo calipers went on the front. This one keeps its six-speed manual and is set up for the street, the track and the show circuit, with an aftermarket exhaust that rumbles without droning and personal styling touches. Blue outside, with black leather and suede inside and red accents.