Did you buy this gem and was it misrepresented? Usually, if a car is sold "as is" - that's it, sorta like "for better or worse" on 4 wheels.
Some states have state mandated inspections required to register any vehicle. If such an inspection was falsified, then there could be a case. Here in MD, you buy a used car either inspected (and pay more) or uninspected (gamble on a cheaper deal but have to take in for inspection and repairs yourself before registration).
You should always have any used car inspected by your own mechanic before you begin negotiations to buy.