ok i have been driving my car during the snow. and i stoped at a stop sign, so then i took of and i pushed the gas giving the car 4000rpm and then i heard a loud (bang) noice and the car stoped,, i tried to give it gas but it wouldn't drive,

the car starts up and runs but it doesn't drive... also when the transmission is switched to parking it rolls aroung like neutral same with the rest of the gears,,.. if anyone knows what may be wrong please help...