Right after Brill(Gene Hackman) and Will Smith are running by the trains, they go under an overpass and carjack a newer Mercedes s500. Then they show the cat being lifted out of a bag on Will Smiths lap if you look at the car door you will see a window crank and a door panel from perhaps the el camino from earlier in the film. Killer Slip-up. won't be noticed unless you are a car guy like me though.