Maybe it's a simple BF Injection, transferred from GTA San Andreas to GTA Vice City via MVL, as new vehicle. Actually, it's a basic car, with a little difference from its counterpart in GTA Vice City.
But MVL version has at least two unique points: * It has its own (attention!) animation of entering and exiting the car. It is transferred from GTA San Andreas — Tommy Vercetti will jump in and out of the car, not just simply get in (P.S.: Animation is set up only for entering and exiting the car, when pulling out the driver there will be standart animation). * Mainly it is found near the golf-club territory and is driven by the golfers (it is occured with my GTA Vice City that these cars have totally replaced Caddys, it's not the first time that happens).