A dealership would be awesome, where you can choose between different preset options for your vehicle of choice and later if you wanted to, add a few after market options and body kits. Though the one thing I want to see is the performance upgrades if it will be like GTA 5 with the standard options like engine 1 and engine 2, or if it will be more like building it to your specifications like choosing the headers, pistons, sparkplugs, supercharge or turbocharge, blower, and many things like that and when your done, be able to test on a dino, kind of like Street Racing Redline. That would be pretty cool.