I assume you meant Colin McRae...not to mock your typos again or anything. Great series that, outside of the tragedy that was 3. One of my favourite drivers/athletes to boot.
Anyway, McRae's more of a realistic take on rallying, while SR 2005 will still have it's arcade roots. Both will have no trouble co-existing in my house, as they've done for years...barring the handling being broken or the courses being boring as shit.