The Ferrari 348 Serie Speciale was made between 1992 and 1993. It was a limited edition version (only 100 were made) of the 348 tb and 348 ts versions. Available for the US market only, it featured a revised 3.4 liter engine which produced 312 hp (232 kW; 316 ps) as compared to the standard engine on the ts and tb which produced 296 hp (221 kW; 300 ps). Each car was numbered (1 to 100), with a 348 Serie Speciale plaque on the passenger's side door-post.