Based on the provided reference regarding the most expensive car ever sold at auction, the identity of the specific current owner is not named.
Here is the information about the car holding the record for the highest price ever paid at auction:
- The record holder is the 1955 Mercedes-Benz 300 SLR Uhlenhaut Coupe Prototype.
- It was sold for $142 million in 2022.
- The sale was conducted by RM Sotheby's on behalf of Mercedes-Benz at a private auction held at the carmaker's museum in Stuttgart, Germany.
While this reference confirms which specific vehicle holds the title for the most expensive car sold at auction and details of that transaction, it does not disclose the identity of the individual or entity who purchased the car and currently possesses it. Therefore, based solely on this reference, the direct answer to "Who has the most expensive car in the world?" cannot be definitively provided.
