@carll337Just to clarify with the "Street" vs "Race" M3 GTR:
There is no E46 gen model with a V6 as far as I know. There's the BMW M3 E46 which has an inline-6, and then there's the "Street" GTR E46 which has the same V8 as the racecar, but it's a road legal variant of which only 10 were made! (This appeared as a quick race car in Most Wanted 2005 Black Edition)
As well as the M3 GTR E46 "Race" which is not road legal, has the V8 engine with straight cut/Dogtooth gears, and is the one we all know and love.
If you need more information NFS FANDOM is quite reliable, and provides some of the Le Man's context. There's even two separate pages, one for street and one for race.