A vehicle diagnostic system and method of performing vehicle diagnostics includes a local system that is adapted to connect with a vehicle and a remote system that is adapted to connect with the local system via an Internet. The local system has a vehicle interface and a local computer system operatively connected with the vehicle interface. The local computer system operates a diagnostic program specific to the vehicle under test. The remote system has a remote diagnostic control program. The remote diagnostic control program interfaces with the local computer system for performing a diagnostic evaluation of a vehicle under test. The remote system controls the local system to perform the diagnostic evaluation of the vehicle under test exclusive of the local system operator.