Xbox Wreckless
Unlock cars

Scenario A

Patrol 1 - Start with it

Funny-Bug - Start with it

Big-4WD - Secret car in Mission A-4 drop down the elevator shaft in the grass area to the left and behind the starting point.  Must finish mission.  Easiest with tank.

AUV - Complete Mission A-9

Dragon-SPL - Finish Mission A-1

Taxi - In Mission A-7 after getting off the highway near the end look for the question mark to the right in the alleyway.  Get him to the last hit before you get there.

Tiger - SPL-Finish Mission A-8

Scenario B

Old-Taxi - Start with it

Super-Buggy - Start with it

Big-Truck - In Mission B-3 turn left from the start onto the road get the first Dim-Sum stand and swing around the block.  Look for the ramp leading up to the second floor as you come towards the place where you got the first stand.

Tank-90 - Beat all 20 missions

Super-Car - Complete Mission A-1

Vaultsafe - On the far northern road in an indented parking lot

Yakuza-Car - Finish Mission A-9