If you want to get technical......ford won 9 times and chevrolet won 15 trans-am championships and 1966 had the under 2 liter alfa winning overall championship over the ford over 2 liter cars.
Small slice of porsche world class racing history.
14....Makes and Team World Championship (1964, 1969, 1970, 1971, 1976, 1977, 1978, 1979, 1982, 1983, 1984, 1985, 1986, 1994)
8......Long Distance World Championship
3......IMSA Supercar-Series (1991, 1992, 1993)
22.....Daytona 24 Hours (1968, 1970, 1971, 1973, 1975, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1989, 1991, 1995, 2003, 2009, 2010)
15.....IMSA Supercar-Race (USA)
16.....24 Hours of Le Mans (1970, 1971, 1976, 1977, 1979, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1994, 1996, 1997, 1998)
18.....12 Hours of Sebring (1960, 1968, 1971, 1973, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 2008)
11.....Targa Florio (1956, 1959, 1960, 1963, 1964, 1966, 1967, 1968, 1969, 1970, 1973)
4.......Rallye Monte Carlo (1968, 1969, 1970, 1978)
2.......Paris-Dakar Rally (1984, 1986)
Below is a porsche that logged over 70,000 race miles, two championships and first overall win of sebring 12 hours by a GTO class car.
I worked on it in the late 80s and was at junkyard next to daytona and could hear that porsches were racing when my phone rang with a question on the bodywork on this car.
I told them I would answer those questions in person within the hour if they got me admission.
Amazing event.
And here's the 944gtr that replaced it at rennsport II.
I like fords and still work on them.
I'll be doubling my "boost by gear" sensor system to include "nitrous by gear" this afternoon for this car below.
http://www.youtube.com/watch?v=kMuPknhk67IHere's how it ran with a blown head gasket and someone running too much boost in all the gears.
http://www.youtube.com/watch?v=Uk9vMQRIp1E