Basic engine in the GT was a 1.8-liter 4-cylinder, making 140 horsepower. For the GT-S, that engine incorporated Toyotas VVT-i variable-valve-timing system and developed 180 bhp. A 5-speed manual transmission was standard in the GT, but the GT-S got Celicas first 6-speed. Either model could have an optional 4-speed automatic transmission. The automatic in the GT-S included a provision for manual gear selection, using four steering-wheel buttons. Side-impact airbags for front seats were optional for the first time, along with antilock braking. Standard equipment included air conditioning, power mirrors, tilt steering, and a CD stereo. The GT-S could get 16-inch alloy wheels instead of steel 15-inchers, and could be fitted with leather upholstery. Both models could have an optional external-sliding power moonroof.