At the end of its life in Group A in 1992, the Australian Sierra teams were reportedly getting around from the 2.0L turbocharged YB engines. For his pole position lap at the 1992 Bathurst 1000, Australian driver Dick Johnson (whose team since 1988 had a reputation for having the fastest Sierras in Group A racing anywhere in the world) was reportedly running a special qualifying engine that was producing close to in his RS500.
At the end of its life in Group A in 1992 the Australian Sierra teams were reportedly getting around from the 2.0L turbocharged YB engines. For his pole position lap at the 1992 Bathurst 1000, Australian driver Dick Johnson (whose team since 1988 had a reputation for having the fastest Sierras in Group A racing anywhere in the world) was repo,rtedly running a special qualifying engine that was producing close to in his RS500.