Complex sentence: It was capable of 148 hp and 188 lb/ft of torque but only 250 RS 3100 s' were produced for homologation purposes between November 1973 and January 1974, this makes original 3.1 L Engines very rare.
Split into simpler sentences: It was capable of 148 hp and 188 lb/ft of torque. Only 250 RS 3100s were produced for homologation purposes between November 1973 and January 1974, making original 3.1 L Engines very rare.