Actually, I have a video of some tiny hatchback car in Europe where they turned the seat around, put steering on the rear wheels, and effectively drove it backwards. It was hilarious! And you could still turn the front (now rear) wheels too, so at one point, the car was driving at like a 45-degree angle straight down the road.
For flipping around a Z, the taillights are easily popped out and replaceable with headlights. Hehe, and as an "emergency 'chute", the hood could be popped as an airbrake.