A car escaping can drive fast and stop barely in time before driving off an overpass that's not finished yet, and be teetering on the edge. Put the car in reverse, flip over backwards, and somehow be turned around in the right direction to jump over the car that is chasing them and get away. The chasing car drives off the overpass and goes up way into the sky, comes back down and crashes into a city street and makes a perfect retangular deep hole. The car getting away just happens to driving on that same street and skips over the deep hole created by the falling car.