The Fox originally had a 1.5 litre engine rated at , attached to a four-speed manual transmission. Subsequent versions came with 1.6-litre engines rated at . By 1978, ever more stringent emissions rules meant that this had dropped to . Four-speed manuals or three-speed automatics were on offer, in all three bodystyles. Aside from the required larger bumpers, early models looked very similar to their European counterparts, while facelift versions (model year 1977) received a large black grille with double, round headlights, without the wraparound turn signals used elsewhere. There was also a sporting GTi package on offer in later years. The B1 platform was dropped from the European market in 1978, although it was sold into the 1979 model year in North America.