This isn't really a cheat, I just wanted to throw this out there. Performance Tuning can help a lot if you know how to use it. I'm here to give you the PERFECT STATS for any of your rides. I don't know what SETTINGS 1,2,and 3 do, so I'll need someone to tell me what those do. THANKS!
STEERING- 5 to the right *Improved turning sensitivity*
HANDLING- Unchanged *Chaos if tuned 5 to the right*
BRAKE BIAS- 3 to the right *Better for those clean E-brake turns*
RIDE HEIGHT- 5 to the left *Improved handling
AERODYNAMICS- Unchanged *Loss of top speed*
NITROUS- 3 to the right *Improved acceleration, slightly less duration*
TURBO/SUPERCHARGER- 5 to the left *More efficient acceleration out of corners*
GOOD LUCK!!!

#10-Baron-Far left marker-Porsche Cayman S

#09-Earl-Middle marker-Mitsubishi Lancer Evolution V3

#08-Jewels-Middle marker-Ford Mustang GT

#07-Kaze-Far left marker-Mercedes Benz CLK 500

#06-Ming-Far left marker-Lamborghini Gallardo

#05-Webster-Far left marker-Chevrolet Corvette C6

#04-JV-Middle marker-Dodge Viper SRT10

#03-Ronnie-Middle marker-Aston Martin DB9 (says kiss me I'm irish)

#02-Bull-Far left marker-Mercedes Benz SLR McLaren

#01-Razor-You automatically get it-BMW M3 GTR

Hope I'm helping
Happy cheating

Gamecrazy132

If you have a fast car, drive into the gas pump at the bus station as fast as you can. Your car will jump up onto the other platform and from their can do whatsoever
Happy Gaming =)
Inuyasha0

Here are some pinkslip hints you should know
Dodge Viper SRT-10
Marker to the far left (or pay $98,000)

Aston Martin DB9
The marker in the middle (or pay $90,000)

Mercedes Benz SLR Macleren
The second marker to the left

Lamborghini Gallardo
The last marker (or pay $120,000)

Chevy Corvette C6
The last marker (or pay $80,000)

Hints

Burger King Challenge
Up,down,up,down,left,right,left,right
P.s. It's at the challenge race menu place

Ford GT
Up,down,up,down,left,right,left,right
P.s. Doesn't work for me but thought I put it up anyways

Ford Syntec Car
Left,right,left,right,up,down,up,down
P.s. It does work,but I have no clue where you can view it

JV-
Ride- Dodge Viper SRT-10
How to get it- Pick the bonus marker to the far left

Ronnie-
Ride- Aston Martin DB9
How to get it- Pick the bonus marker in the middle

Bull-
Ride- Mercedes Benz Maclaren SLR
How to get it- Pick the bonus marker second to the left

Razor-
Ride- BMW M3 GTR
How to get it- You automatically get it after beating Razor

Level1:
Car:Civic Cruiser
Tactics:Rolling Roadblock, Box, PIT(Precision Immobilization Technique)

Level 2:
Car:Civic Undercover Cruiser
Tactics:Rolling Roadblock, Box, PIT, Roadblock

Level 3:
Cars: State Pursuit Vehicle, SUV(Sport Utility Vehicle) Light
Tactics: Rolling Roadblock, Box, PIT, Roadblock, SUV Roadblock, Rhino(SUV Ram)

Level 4:
Cars: State Undercover Vehicle, SUV Heavy
Tactics: Rolling Roadblock, Box, PIT, Roadblock, SUV Roadblock, Rhino, Spike Strip Roadblock

Level 5:
Cars: Federal Pursuit Vehicle, SUV Heavy, CROSS (No, it's not a series of words, I just like putting his name in capitals!)
Tactics: Rolling Roadblock, Box, PIT, Roadblock, SUV Roadblock, Rhino, Spike Strip Roadblock

Level 6:
Cars: Federal Undercover Vehicles, SUV Heavy, CROSS
Tactics: Rolling Roadblock, Box, PIT, Roadblock, SUV Roadblock, Rhino, Spike Strip Roadblock

Level 7 (Only available in the Black Edition at I think event 69):
Cars: Federal Undercover Vehicles, CROSS, SUV Turbo
Tactics: Rolling Roadblock, Box, PIT, Roadblock, SUV Roadblock, Rhino, Spike Strip Roadblock

This cheat only works if you are seen by the cops in a race.if or after you finish the race after the photo comes up; press the y button to restart the race(it says that all progess will be lost but that doesn't apply after you have finished the race)then once the race has been loaded again press start then go to quit to free roam and your heat level should be the same it was before you started the race.

Press:

Up twice, press down twice, press left, press right, press up, press down.

This is a special marker for the junkman engine part.It will appear in one of the shop's under performance in career mode.

You can only use it one time.