Yeah, I really didn't think the pre-99 through properly. It was aimed at a couple of people who wanted to run their mid 90's Cats and Cougars (none of whom seem to want to race now!) xx4 does count as pre-99
2wd and 4wd are running together for vintage - unless we had enough entries for 2 heats! Even then I'd be inclined to split based on year rather than transmission.