Enus
The Paragon R is an Enus sports car returning from earlier GTA games. Rockstar first showed it in Rockstar's website.
8F Drafter
First shown: Official Screenshot: Ambrosia 01
Banshee
The Banshee is a Bravado sports car returning from earlier GTA games.
Blista Compact
First shown: Official Screenshot: Port Gellhorn Postcard
Buffalo
The Buffalo is a Bravado sports car returning from earlier GTA games.