Porsche 917 K

The bad results of the 917 in the 1969 forced Porsche to review the aero design, since its main problem was handling at high speeds. Those improvements gave birth to the 917 Kurzheck: that year this car won 7 out of 10 races, smashing the record distance by 190 miles at the 24 Hours of Daytona (724 laps).