Perhaps a better option would be to assign a 'class' to each vehicle. Basically grouping them.
You could have:
- Trucks
- Rally
- Racing
- Formula 1
Or something. Some stuff, like the Quar, SmarModile, POS Car and Van, may be a bit difficult to categorise however. On the other hand, categorisation could be done based on speed/handeling performance, and have stuff like "Class A", "Class B", etc.
Perhaps give mappers and server admins control over which classes are allowed in maps.
For existing maps, it probably wouldn't be too bad if we just coded in a list of existing maps and matching allowed classes.