2 Wheeled Vehicles

Funny, but not so funny...

I'm trying to put a motorcycle in game. Those familiar with the game engine already know what I'm about to say:

Two wheels, the vehicle just falls on its side.

It was pretty funny the first time it happened, but after working on it a bit I realized that I didn't have a solution.

The only hack that I can think of is to make the bounding box much larger at the base and set the body friction to a low number. Essentially this is like adding invisible "training wheels".

The only problem with this (other than the fact that it's a horrible hack) is that clipping an object fairly closely would cause an unexpected collision.

Now I understand why the only motorcycle type vehicles I've seen have been grav cycles.

Any suggestions or ideas on how to make a two wheeled vehicle? I suppose I'll simply have to combine the grav and wheeled vehicle code. The "banking" code is in the grav class, so this will probably be the best solution. I've never taken physics so hopefully I can do this with simple "hack and slash" coding.

For now I've just modified the axles a bit and turned it into an ATV. Really fun, really fast, but not exactly what I had in mind.