917 L (langheck) featured a spectacular new "long tail" body with a wing, which had very low drag. They were dubbed “batmobiles” by the media. Two engines were available: the 4.5-litre flat-12 now capable of 550 bhp, and a new 4.9-litre version (590 bhp). Most drivers preferred driving the K even though it gave away as much as 25 km/h (15 mph) in top speed. The langheck was less stable and needed far more concentration to keep on the track. Porsche's works drivers had been inherited by the JWA team who fielded three 917Ks. The lead car was driven by Jo Siffert and Brian Redman who had already won two rounds in the championship. Pedro Rodriguez (Le Mans winner in 1968 for Wyer) and Leo Kinnunen, in the second car, had won three races. Brits David Hobbs and Mike Hailwood, who had driven Wyer's Ford the previous year, had the third car with a 4.5-litre engine. A fourth JWA 917K entry was not accepted - the drivers were to have been actor Steve McQueen and reigning F1 world champion Jackie Stewart. As Ford had done several years earlier, Porsche also supported a rival, second works team based in Austria (much to Wyer's surprise). The new Porsche Salzburg was run by Louise Piëch, sister of Ferry Porsche and mother of company Technical Director Ferdinand Piëch. Vic Elford/Kurt Ahrens ran the 4.9-litre 917L, while Swiss-pairing Rico Steinemann/Dieter Spoerry and veterans Hans Herrmann/Richard Attwood had 4.5-litre Ks. The Martini Racing customer team also gained some support from Porsche AG, being the other runner of a 917L for Gérard Larrousse/ Willi Kauhsen. The spectacular livery of this car was an elaborate scheme of whirls and swoops of green on a blue background. The car gained the nickname of the Hippie Car or the Psychedelic Porsche from the team and the media and started the Le Mans tradition of the “art-car” special. The final 917 was from British privateer David Piper. With Gijs van Lennep as co-driver, they had already proven very competitive through the championship year. In June 1969, Enzo Ferrari had sold half of his company to Fiat and that money was able to finance, like Porsche, the construction of the required 25 cars of its new Group 5 car: the Ferrari 512S. Based on the 612, Ferrari's Group 7 Can-Am car, it had a 5.0L V12 developing 550 bhp. After a victory