Before I spend a bunch of hard earned credits in the online dealership I want to know if those cars can be used offline in A or B spec? I'm skeptical due to the 4th tab in the garage marked "online".
Im wondering the same thing. I caught myself about to spend over a million credits there then i thought about the online tab in the garage then i said "that would suck a** if i couldn't use this car offline"
You are right to be skeptical when it comes to this game, but in this case you have nothing to worry about. The online dealership is more like a bonus used car dealership.