The best Porsche of all time, IMO, the 1969 917K, which won the Sports Car Championship that year (and the Le Mans 24H in 1970), and the far more sophisticated 962c (aka "Shorttail") which won the 1987 24H (Porsche's seventh consecutive victory at the Sarthe circuit). The K is fiendishly difficult to drive; the c is, relatively speaking, a piece of cake. A 10-lap setup for each of the Kunos variants.