As the name says, the vehicle is a modified version of a Hermes. The car can mostly be seen in Little Havana, Vice City, the territory of the Cuban gang.
The car features a unique paintjob, black body color and flames in the front. The color is permanent so activating color cheats won't affect the car's color. The car also features side exaust pipes that flames can be seen coming out of upon accelerating the vehicle. The car also has the sound of a V8 engine, the similar sound that the Sabre Turbo has.
In GTA Vice City Stories, the car isn't any different than the car in GTA Vice City, although the car features a grey body color with flames. If the player enters in the "Black Cars" cheat, they can make the car look like the one in GTA Vice City.
GTA Vice City
Found driving around Little Havana. Carjack a Cuban gangster to obtain one.