The very first set to feature a LEGO minifigure was this set: 600 Police Car. Though the model is small and extremely disproportionate, the set is so significant, as it led the way for thousands of sets with thousands more minifigures. Released, of course, in 1978 following the patent of the LEGO Minifigure, it was composed of 23 pieces, and shared set numbers with an Ambulance set released in 1970.