Try asking some local businesses if they will 'sponsor' you (no Pizza Delivery joints, unless you really want to). Applying the wrap itself is costly, but if you do the leg work you can have the wrap company do it and make more profit. Tell the clients it's x down (price of Wrap) and x a month, tell them you'll hand out info to all the 'potential' customers that ask about your smartie, ads on busses can't do that. Get a contract. Look at what Little Debbie is doing. Look at ad here and here. Maybe you can find other 'broke arse' students with smart cars or just small cars to make a 'fleet'.