GTA 5 - Vapid Bullet
They don't make 'em like they used to. Which is why Vapid designed the retro-classic Bullet based on the racing cars of the 1960s, back when nobody gave a crap about carbon footprints or the Ozone layer.
This vehicle in GTA 4: • GTA 4 - Vapid Bullet GT
Car Locations:
Always spawns at Simeon's dealership at the beginning of "Repossession"
Sometimes found parked opposite of Sessanta Nove on Portola Drive in Rockford Hills
Seems to spawn when riding a Hexer
Spawns commonly when driving a Buccaneer
Seems to spawn while driving a Dubsta around the lower parts of Vinewood Hills, such as near Franklin's mansion
May spawn more commonly whilst driving an Infernus around Rockford Hills, particularly near Michael's mansion.
Sometimes parked in the Kortz Center car park
Sometimes spawns at the Limited Service station in Richman Glen
Can be bought from Legendary Motorsport for $155,000 (Online)
Sources:
http://gta.wikia.com/wiki/Main_Page
/ @broughy1322