I also owned a DeLorean. It was a fun car, but yes it lacked power. A few points though:
DMC-12 was the pre-production name. It was never sold as the DMC-12. That’s why you won’t find DMC-12 anywhere on the car, the owners manual, the certificate of origin, nor any official advertising once the car was in production. All documents (again, AFTER production started) simply refer to the car as the DeLorean.
The charges against John weren’t dropped. He was found not guilty. It was proven that the FBI entrapped him.