Porsche introduced another evolution of the 908 for the 1970 Targa Florio.
The new cars with inner-vented and perforated brake discs were an immediate success and Porsche took 1-2 victory. The winning 908/03 Spyder #12 was piloted by the talented tandem of Jo Siffert/Brian Redman and second place went to car #40 Leo Kinnunen/Pedro Rodriguez. Again a Porsche 1-2-3 victory (or actually a 1-2-3-4 victory) was spoiled by a Ferrari. 4th place went to 908/02 K Spyder of Gijs van Lennep/Hans Laine and 5th place to 908/03 Spyder #36 of Björn Waldegaard/Richard Attwood. The fourth entered 908/03 #20 had to retire because of an accident.
The first version of the 908/03 (1970 model) was entered only in two races, the second one being the Nürburgring 1000 km on May 31, 1970, where a 1-2 victory was taken again. The winning car was the same (chassis 008) which won the Targa Florio. The car had completely different color scheme altough there was only 4 weeks between the Targa and the Ring event.