These are the first Grand Theft Auto V super speed car mods by XPGDarkside. Check out the 600 m.p.h Comet! The Comet is based on the Porsche 911 and best resembles the 911SC Targa from the late '70's or the early 1980s; however, like newer 911 models, it has an all-wheel-drive configuration. The car features a targa top similar to the Targa 911s; however, the fastback profile the Comet sported in GTA Vice City was dropped in favor of a backwards-slanted standalone C-pillar until GTA IV. GTA III era renditions of the Comet are front-engined, unlike the real Porsche 911, which is famously rear-engined; this led to speculation that the Comet was inspired by a Datsun 240Z. The headlamps may also have been inspired by the 1966-1969 Alfa Romeo Spider. We wasnt sure of the top speed , until XPGDarkside modded it that is, now we know it does 600M.P.H ! Name: Team Media Presents GTA V 600MPH COMET !!! Category: Xbox 360 Modding Date Added: 10 October 2013 - 03:35 PM Submitter: XPGDARKSIDE Short Description: GTA V 600MPH COMET !!! View Video