If you use the Toyota Minolta with R2 tires front, R1 tires rear, you will have a guaranteed win.
And BTW, use the search function before you post a question. As I had said before, "I have seen this type of thread a million times, and been locked a million times".
If you search for "Nurburgring 24h", you would've seen a million suggestions on which car would trounce the 24h race.
And/or as an alternative, you could've picked out your best car and run it on the 24h race for a few minutes to see if it could succeed against the opponents, which are DTM cars.
Duck7892