I like 'em too...we were just talking about them in that drifter car thread last week. .
Clean machines aside, personally I'd be looking for the cleanest example of one of the 'Player's' cars w/ the best race history I could find. . You'd want to get the logbooks for sure also documenting the race by race history would be fun and you'd be able to take part in some weekends at the track too! .
All this not forgetting I'd want to consider what may be available in an ex-cop car example too! .
Have fun!
~ Pete