It manufactured brakes, exhausts, compressors and various other automotive parts. Other features included carbon ceramic disc brakes, rollcage, side-exiting exhausts and 19-inch ROH alloy wheels. It featured dual underseat exhausts, optional ABS, DCBS linked brakes, and optional hard luggage. The standard engine was the Bonneville's V8, which came with four-barrel carburetor and dual exhausts. The GTI can be identified by its fully body coloured bumpers and twin central exhausts. Also a V8 with four-barrel carburetor and dual exhausts was now standard equipment. A steam turbine often exhausts into a surface condenser that provides a vacuum. That model has lights for the eleven engines to give the illusion of exhausts. Midyear also brought a more potent 283 with dual exhausts and 220 horsepower. Air pollution from "noxious gases from ships' exhausts" was already being discussed internationally. Both other models have twin exhausts and leather seats as standard. It also proved successful testing twin exhausts and pulse jets. Some exhausts, notably alcohol fuelled rockets, can show visible shock diamonds. The tail plane was raised to clear the jet exhausts. They started by building replacement exhausts for the local bus company.