BL R-series engine fitted to the Maestro with the carburettor facing the front of the car, which also led to a reputation for carburettor icing in cold weather. The endemic problem of crankshaft failure was later attributed to flexing of the crankcase – because the E series relied upon the heavy sump/transmission unit to give additional strength to the cylinder block casting, this caused problems when a plain sump was bolted in its place. The R series was superseded in 1984 by the S series. BL R-series engine The R series is a line of petrol engines introduced by British Leyland in 1983
1983 Australian Sports Car Championship points allocation for the driver at that round. 1983 Australian Sports Car Championship The 1983 Australian Sports Car Championship was a CAMS sanctioned motor racing title for drivers of Group A Sports Cars. It was the fifteenth Australian Sports Car Championship. Peter Hopwood, driving the Steve Webb owned Kaditcha Chevrolet, won the championship from Ray Hanger in a Rennmax Ford. Defending champion Chris Clearihan finished third in his older model Kaditcha Chevrolet. The 1983 championship saw the debut of the Bap Romano owned and driven Kaditcha K583 Cosworth, the first Australian Group A Sports Car built with a closed top