Gran Turismo Cheats

GT Hi-Fi Option
Win the 'Gran Turismo World Cup' to unlock the GT Hi-Fi option.
Submitted by Blade. Did this cheat work for you? [Yes] [No].

Concept Car
In order to get the Dodge Concept Car, which you cant buy, you have to win the British vs US race.
Submitted by York_L_Wilmore. Did this cheat work for you? [Yes] [No].

Easy Money
The easiest way to get lots of money later in the game is to race the qualifier for the all nighter. You get $20,000 just for qualifing and it is very easy to do this with the GTO special edition or any other car with good speed/acceleration and handling . It takes app. 1'45'' to complete with the GTO special edition.
Submitted by York_L_Wilmore. Did this cheat work for you? [Yes] [No].

Faster Acceleration
To accelerate faster, rev your engine during the countdown. Be sure to go from the lowest point in neutral to the hightest point in neutral, and back down to the lowest point in neutral as many times as you can before you go.
Submitted by York_L_Wilmore. Did this cheat work for you? [Yes] [No].

Nissan Nismo 4000GT-R
To get Nissan Nismo 400GT-R you have to get all golden trophies in International A class license.
Submitted by York_L_Wilmore. Did this cheat work for you? [Yes] [No].

Hi-Fi Mode, Bonus Cars and Bonus Tracks
To get all the bonus items in Arcade mode, which include the four other tracks (Autumn Ring, Deep Forest, SSR5, and Grand Valley Speedway), all the other cars (Toyota, Subaru, Dodge, and TVR), the ending movie, and Hi-res GT Mode, you have to beat every single track with each type of car (A, B, and C) under all three modes of difficulty (Easy, Normal, Difficult).
Submitted by York_L_Wilmore. Did this cheat work for you? [Yes] [No].

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Note: Because nGaming does not have all games for Sony PlayStation, it is not possible for us to verify that each of the Gran Turismo cheats above is correct. If any of the cheat codes, tips, hints, glitches, walkthroughs, FAQs, easter eggs or unlockables listed above is incorrect, please rate the cheat using the link just below the cheat information. Please note that in a minority of cases, some cheats will only work in certain versions (PAL, NTSC etcetera) of the game. Also, please be aware that it may be the case that nGaming does not yet have all of the Gran Turismo cheats yet - if you know any hints or tips for Gran Turismo on PlayStation, we would greatly appreciate it if you could submit the cheat so we can add it to our database.