The electric car was stolen in the carport contracted by the residential property.

First of all, you need to know where your electric car was stolen, and whether there is a compensation clause for the owner's car being stolen in the property service contract you signed. First, you need to prove that your vehicle is parked at the designated parking spot of the property and has formed a custody and trusteeship contract with the property. Second, it is necessary to prove that property management is not due diligence, there is gross negligence, and it has not performed its due duties as normal. If your friend can catch these two pieces of evidence, it won't be difficult to win the case.