At this point sure. MLI - Quad Cities Airport. Same inventory is shared with Enterprise at this location and I'm not 100% sure but I think they have the same manager (who appears to never be on duty, weekday, weekends, days or nights.
But again nothing official with Enterprise on specific cars? I guess one can say that all locations will possibly get to know you more and assign based on preference. The way the people put it to me at the counter, it's like this is an established benefit for Enterprise (at least at this location).