Need for Speed 4: High Stakes

become "most wanted" and "top car" in each of the 3 modes of hot persuit and get these cars
Classic   Pursuit Camero
Getaway   Pursuit Diablo SV
Time Trap Pursuit La Nina

Just type these any where in the Menu ( you must download a special save game file get it at http://www.nfs4.com/pc/downloads.shtml )
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ACAR     bonus car
BCAR     Bonus car
CCAR     bounus car
DCOP     Bonus hot pursuit car
ECOP     Bonus Hot Pursuit Car
FCOP     Bonus Hot Pursuit Car
CARS     Get all cars
TRACKS   get all tracks
GO FAST
GOFAST   Upgrade engine ( Arcade)
MONKEY   upgrade Transmission ( Arcade )
MOON     Low Gravity ( arcade )
MADLAND  Super Human Opponents ( Arcade )
BUY      Free Purchase ( Carreer )
UP0      No upgrades
UP1      1st Upgrade ( career )
UP2      2nd upgrade ( career )
UP3      3rd upgrade ( career )
GATES    Cash Increase
ALLTIERS open all tiers
OUTMYWAY horn causes racers to crash
RESETYA  horn causes other racers to reset their car
buy      free purchase
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