Head to head racing with slot cars was always fun, but the problem was that you could never really play a defensive game. My friend’s and I would often toss small things on the track in hopes of derailing the other persons car. It added an additional element to our normal races. That is why I love the Dynamite Crossing concept, the only problem with it is that it is too absolute. You push that button and boom, that car is history. What I would have preferred is a racing game where your both ride, but you also have buttons on your controller that will flip track switches and shake bridges and things like that.
It could have been a mechanical Mario Kart style game.