Beware of that the "?" only checks the condicion is true and then it goes on... It won't wait untill the condicion is true...
So to make any use of it you'll have to make something happen IF the condicion is true....
?not (alive Car1) : Player sideChat "Oh no... The car is broken.. Now I'll have to WALK home.."
Like that.. ;D
But if the car is alive when the script gets to this point, no sideChat will appear... And the script will never check that condicion again unless you have a looping script or runs the script twice..
With that said, if you're problem is solved, then just press the "Solve Topic" button in the lower left corner of the screen