If the wings offered enough lift then it would take off, forward propulsion after take off would be a problem. I don't think the exhaust gases would provide enough thrust.
I think it would fly after all you know what they say ?...........RED BULL GIVES YOU WINGS!!! hahaha.
I so can't believe some one did not get in there before me with that one.
Other than getting to lift off speed there's nothing that would propel it forward if it does leave the ground (There is a fan sucking the car to the ground as well as the spoilers that keep it glued to the ground).