A Plymouth Satellite
The Satellite was an American automobile built on Earth by the Chrysler Corporation for their Plymouth division in the mid-20th century. The vehicle was powered by an internal combustion engine.
In 1968, a Satellite was used as the personal vehicle of Launch Director Cromwell. He drove this vehicle to a launch pad in McKinley Rocket Base, where he rendezvoused with security guards, including Jack Nesvig. (TOS: "Assignment: Earth")
The car was a 1968 Satellite. The model's name, in cursive, was on the side of the vehicle.