http://bugs.winehq.org/show_bug.cgi?id=27326
--- Comment #2 from Warren Dumortier nwarrenfl@gmail.com 2011-05-29 09:01:02 CDT --- After asking on #winehackers _Marcus_ helped me a bit to debug this.
It seems the executable launches dirt3.exe by calling KERNEL32.CreateProcess (see line 4698). Afterwards it does ReadProcessMemory and WriteProcessMemory calls. Finally the process exits by calling KERNEL32.ExitProcess (see line 5847).
If anyone can debug further, please let know, the debug output isn't really big as the game directly exits...