Sorry if I am hijacking this thread. This will be the last one from me.
I don't know, which one is Mark Donohue's car, but one of the 917/30 CanAm Spyders with the blue and yellow Sunoco Porsche Audi livery sits in the Porsche museum in Zuffenhausen. Not sure how many 917-30s survived. Some of them were modified after the SCCA rule changes in 1974 in order to continue to compete somewhere else. This happened to at least one of the Penske cars. Porsche campaigned the 917-30 in the Interserie in Europe after they had to pull out of CanAm. Brumos in Jacksonville has a 917-10.
I took this picture in 2003 in the historic racecar display during the 24-hrs of Daytona. I am not sure, whether this is the Brumos car.
The 917 in your picture is a coupe. They were naturally aspirated, and ran mostly in the European endurance series. They generated about 680 hp and were the most successful of all the 917 models.
This is the Brumos car. It is a 917/10. It was driven by Hurley Haywood in the 1973 Can Am series. I was lucky to meet Hurley in Jacksonville, at Brumos Porsche, and I asked him about the 917. He very graciously took me to Brumos' car collection, and gave me a personal tour. They normally don't allow photography, but he allowed me to take one picture of the 917 with him standing beside it. I was thrilled. Hurley Haywood is a fine gentleman. This 917 is turbo charged, and I believe it normally generated around 1000 hp.
The 917/30 in the Porsche museum is one of the two which were owned by Roger Penske, and driven by Mark Donohue in the 1973 Can Am series. Number 6 was the primary car, and number 7 was the backup car. I don't know who owns the other one, but I wouldn't be surprised if Roger still has it. I believe that only two 917/30s were built originally, but two or three more were built from parts, later. This car produced up to about 1600 hp in qualifying trim, and normally raced at about 1100 hp. I believe it is the most powerful race car ever produced, except for dragsters. I believe it topped out at about 265 mph. One of Penske's cars was somewhat modified and set a closed course speed record in 1975, at Talladega, in spite of the fact that the attempt had to be cut short after two laps from a standing start, because of rain. Here is a picture I took of Mark driving number 6 at Road America, in 1973.
These cars instill the same type of feelings in me that I get from the CBX. Both are works of art.