I can't wait for the upgrades! I just have a few simple requests...
Sort ability in the view vehicle screen, allow hi-light photo selection for each vehicle and addition of a mileage field (could be covered by custom fields)
Also, please do away with the required fields and allow the admin to select which fields are required and even which fields are displayed. My members don't like the price field for vehicles (price is ok in the modification fields,though!)