Project Gotham Racing 3 Cheats, Codes & Guides
Before You Cheat
 Value-priced classics collection on its way
Geometry Wars 1 & 2
Just like in PGR2, they've placed geometry wars in the first garage. Once you've chosen the race you will enter, and it brings you to the garage to chose your car- go to "MORE..." at the bottom of the list. The next menue has the choice of "WALK AROUND THIS GARAGE" choose this and it will bring you to the garage. Immediately in front of you and to the right are two arcade machines. One is the original geometry wars from PGR2, and the other is geometry wars retro. These are only demos though, so you have a 3 minute time limit...although props to anyone who can survive the 3 minutes.
Great Racing Start
When you start the race, at first move slightly to the right, then pull over to the left toward the guardrail and pass a few cars. Then cut diagonally into the car to your right (the 3rd place car) to spin it. That car will block the two cars behind it, promising you an easy early lead.
In order to maximise your speed around a corner tap the break at the beginning of the turn while turning the wheel, if you get your timing right you car should slide at a 45 degree angle right beside the inside of the turn. Once past the inside corner let go of the accelerator and tap the break again, this should end your slide in about .5 of a second. Then accelerate slower by not pressing the gas down all the way, once you have gone past the white and red curbs or when you feel you wheels will grip fully accelerate. THIS TAKES PRACTICE! You should use it if you are at a medium lvl or higher in your offline carreer.
Cat Champion (10) - Win a Cat & Mouse Event as a player in a non E class vehicle.
Photographer (10) - Take and save a picture in each of the different cities.
Team Cone Capture Champion (10) - Be on the winning team of a Team Cone Capture Event.
Tournament Qualifier - Qualify for a tournament and play in the first elimination round.
Track Builder (10) - Create and save 10 Custom Routes
Mouse Master (15) - Win a Cat & Mouse Event as the player in the E class vehicle.
Gotham TV Sports Fan (15) - Watch Gotham TV 10 times; save a Replay of a race
Arcade Player (15) - Play Geometry Wars 1 and 2 in the garage
Cone Capture Champion (15) - Win a Cone Capture Event.
Rank 10 (20) - Get to Rank 10
Steel Champion (30) - Complete all championships at Steel level
Gotham Hero (30) - Be featured on Gotham TV
Ferrari Owners Club (45) - Own all the Ferrari cars
Lamborghini Owners Club (45) - Own all the Lamborghini Cars
Exotic Car Club (45) - Own: McLaren F1 LM; Shelby GT 500; Ford GT-40 MK 1; Corvette ZR1; TVR Cerbera Speed Twelve; RUF CTR \"Yellow Bird\"; Callaway Sledgehammer Twin Turbo
Rank 5 (50) - Get to Rank 5
Race Against The Clock (50) - Set a lap time for every circuit in Race Against The Clock mode
Style Racer Badge (50) - 25m powerslide; 10x Combo; 25k Online Kudos; 1k Kudos in a race; Kudos for every maneuver
Bronze Champion (50) - Complete all championships at Bronze level
Online Professional (60) - 50 online races; start last/finish first; 3-event win streak; clean race; win each scenario
Pro Racer Badge (60) - Earn a Platinum medal using manual transmission
Silver Champion (60) - Complete all championships at Silver level
Gold Champion (75) - Complete all championships at Gold level
Rank 1 (80) - Get to Rank 1
Platinum Champion (100) - Complete all championships at Platinum level
Unlock Concept Cars
Ford Mustang GTR - 10,000 Kudos
Nissan GTR - 50,000 Kudos
Cadillac 16 - 90,000 Kudos
Ford Supercar Concept - 120,000 Kudos
Shelby Cobra - 160,000 Kudos
Toyota GT-One - 230,000 Kudos
Ford GT90 - 300,000 Kudos
Shelby GR-1 - 390,000 Kudos
RUF Supercar Concept - 475,000 Kudos