Algodoo

this car was earlier rendition of the cheetah from gta 3
and yea its called Rocket back then before is called cheetah today

this car can be seen in the Early screenshots of the game development
and Early Cars renders on Early Rockstar website called Capital autos.

compared to Released model this car has different front grill, different rear lights, NY license plate, Gray colored rear hood with black stripes,
smaller model than final cheetah model and also long front hood due to the model had short wheelbase..