The K in 907K stands for short-tail ("Kurz" in German). Porsche brought four new 907s with short-tail bodies to the rugged Sebring circuit in March 1968. Seven laps in, one 907 was out, and a second suffered engine troubles after 46 circuits. Not to worry, as the other two dominated the race. Porsche 907 024 with drivers Hans Herrmann (Germany) and Jo Siffert (Switzerland) went from the pole position to a dominating victory at an average speed of 102.512 mph, 10 laps ahead of its sister 907.
In 1967, Porsche brought a new kind of car to Le Mans. The 907 had a small flat-six and incredibly low bodywork, was aerodynamically optimized. Ford won Le Mans, but the 907 proved its worth. At the end of March, 1968, Porsche had four type 907 chassis ready, and brought them to the 24 Hours of Daytona. Fully developed, the 907 now used a 2195 cc aircooled, magnesium alloy flat-eight with Bosch fuel injection, good for 278 bhp at 8700 rpm. The 907LH (lang heck, or long tail) was slippery, stonking fast and wicked hard to drive. And it won.