In 1978, models had a revised grille with a grid design, while the grille and headlight frames were chromed for standard models, a four-door hatchback riding on a wheelbase was added — two inches longer than the two-door — and this version accounted for more than half of the Chevette's nearly 300,000 sales. The 1.4-liter engine and Woody package were dropped with a fuel door added. A TH-180 automatic transmission was added to replace the THM-200 series automatic. An "HO" (high output) version was available in addition to the standard 1.6-liter, featuring a modified head and a larger valves-cam profile. The HO package also included a dual-outlet exhaust manifold. Prices were dropped and more standard equipment was added for 1978. Air conditioning, radial tires, an AM/FM radio, and power brakes were optional.