Garages would be great I have been wanting to have the mechanic career since the On the Road survey first mentioned them with options to build fix and customize cars would be nice to have the option to open up a car lot along side it. There's just so many car specific lots they could go with like drive in theaters or make out spots for our teens overlooking the city and a gas station is a must you could have your Sims drive up to a pump after loading into the lot have your Sims go inside for a Icee or purchase some (chance card) lotto tickets or do some basic shopping.