Why does my 2000 chevy impala smell like gasoline after being driven?
The possible reasons why your Chevy smells gasoline after driving could be that there is a leakage at the fuel system. Old cars will also emit a slight gas odor after shut off because of the fuel afterboil in the carburetor flow bowl. If this smell lasts for long, it is important to take the Chevy to the mechanic. For more information, log into http://www.livestrong.com/article/169275-the-reasons-a-car-smells-like-gas-when-driving-and-while-parked/.
the engine was probably heated up and the smell came through the air vents. take it to the mechanic, they will probably check it out for a small amount. if there's nothing wrong, it will have been better to get it checked out.