Chassis Number 350, built September/October 2012, Spax suspension, steering rack with hole in top (later rack), M3W pedals, power socket near centre of car, non-flanged rear wheel pulley, widened chassis with more room for pedals than earliest cars, only side bolts under dash holding frame to chassis, 3 sets of holes (only) for pedals, fixings in rear compartments for screwing in plastic boot, earlier mudguard inside rear tub, no guard for seatbelts (so these get dirty).