The 348 Challenge was the car for the one-make cup series, which kicked off in 1993 with both an Italian and a European championship. The engine largely corresponded to that of the road car; modifications primarily involved slick tires, a body kit, brake pads, a roll bar, the battery, and harnesses. Most cars were converted by dealers using factory-supplied Challenge kits. In 1994, G-specification cars had to be retrofitted with H-spec cylinder heads and H-spec fuel injection. 1995 was the final season before the F355 Challenge took over.
Summarized from the sources cited below; every figure in the text was automatically verified against the sources.
1989
1993
1994