Ignore vinny's agreement with oscar and assume that vinny and maria had an otherwise valid contract. could maria avoid her obligations if she finds out the car does not have air conditioning?

The answer is no, the only condition in her acceptance was that it pass a smog inspection. In addition, The Smog inspection is a significant part of the State's efforts to improve the air to breathe. The Smog inspections are intended to recognize vehicles with extra emissions so they can be appropriately fixed. The vehicle cannot be registered if the vehicle fails to pass the Smog inspection. In general, in order to obtain a smog test certificate, the vehicle must be repaired. After failing, there will be a report from the inspection station attendant specifying desired maintenances.