there is a off road camera setup like a webcam, only shatterproof lense, waterproof and you can attach it anywhere inside or outside your vehicle... i installed a few on some hunting quads and the mules. nifty little tricks.

 

I was actually going to suggest a helmet cam... I've seen those get bashed into handlebars at snowmobile races and keep recording no problem lol. But that would be more expensive than what you'd be doing with this camera...

Let us know how it works out.