simpsons hit and run hacks

(note:to use these hacks you must go to the options screen and hold down both triggers while entering code)
ok its an ok game so here are some hacks(only works on xbox)
y/a/y/a=cant blow up your car
y/y/x/x=blow up other cars with one hit
x/x/x/x=faster cars
y/y/y/y=ultra fast cars
x/x/x/y=high jump when horn button is pressed(black button)
y/y/b/x=speedometer is visible
enjoy!
jtds.clan.leader