can you tell me a cheat for driver1

Sure, hear they are:
--------------------------------------------------------------------------- ------Invincibility
At the main menu rapidly press L2, L2, R2, R2, L2, R2, L2, L1, R2, R1, L2,
L1, L1. This option will now be unlocked in the cheats screen.

Steer with Rear Wheels

At the main menu rapidly press R1, R1, R1, R2, L2, R1, R2, L2, L1, R2, R1,
L2, L1. This option will now be unlocked in the cheats screen

Get Rid Of Police

At the main menu rapidly press L1, L2, R1, R1, R1, R1, L2, L2, R1, R1, L1,
L1, R2. This option will now be unlocked in the cheats screen

Tiny Cars

At the main menu rapidly press R1, R2, R1, R2, L1, L2, R1, R2, L1, R1, L2,
L2, L2. This option will now be unlocked in the cheats screen

Flip Screen Upside Down

At the main menu rapidly press R2, R2, R1, L2, L1, R2, L2, L1, R2, R2, L2,
R2, L1. This option will now be unlocked in the cheats screen

Long Suspension

At the main menu rapidly press R2, L2, R1, R2, L2, L1, R2, R2, L2, L2, L1,
R2, R1. This option will now be unlocked in the cheats screen

Show Credits

At the main menu rapidly press L1, L2, R1, R2, L1, R1, R2, L2, R1, R2, L1,
L2, R1. This option will now be unlocked in the cheats screen

Escape Police

When a Police Car is behind you, slam on the brakes until he hits you then
immediately put the car in reverse. When the policeman says he lost you hit
the gas!!

Another way to shut down a police car is to approach it
head on and keep pressing the accelerator until you lock up. Eventually,
the sirens will shut off. Then, for fun, you can have a ram fest to let out
all of that anger or revenge (ha ha). Another fun thing to do is donuts by
pressing any direction after stopping, holding it, and finally hit circle
(recommended use with invincibility on).
Better Handling Tips

Turn off the "Auto Handbrake" option when you start the game.

Ram the back of your car into other cars or a building until the damage bar
turns green. This will make the car handle better

Activate All Cheats

Complete the whole game once (including New York) and all cheats will be
activated in the cheat menu.

Get all four in four secs

At the test or training in driver you can accomplish burnout, handbrake,
speed, brake test, within the first five second's by accelerating with the
burnout button from your starting point until you past the last column in
the garage. Then brake using both the regular and hand brake buttons and you'll
stop just before hitting the wall.

Easy Way to Beat Undercover Mode

Put on the invisibility or get rid of police code and race through the
missions and the police will not see you

Get in Building

"In Miami" track #1;drive straight until you see a new city then you'll see
two little red lines on your map in the corner, you'll also see another long
red line turn on that line u will see 3 poles go up to them and look be hind
and you will see a building sticking out. Drive through the white square
part...

Drive on the ocean:

Pick the Miami level.  Drive o a corner by the ocean.  Get a cop to ram you
in the side.  If he hits you just right, you will get shot through the
barrier, and onto the beach.  Now you can drive any where around the city,
and the cops can't get you.

NOTE: It might take a couple of times.  It might also be a good idea to have
invincibility on.