I actually played around with that scene and believe me, it would take a lot of work to get it to look good. Removing the orange isn't too tough, but removing the same amount of orange from frame to frame is hard. It would look like the ground keeps changing shades of brown underneath the car, which, to me, would be more distracting than the orange blob.
It's not impossible, but such an investment in time will have to wait until the future.