You can now get a kit to fit into most radio bays that will dock your Mac Mini. Use the Mac for entertainment, navigation, blogging (!), whatever.
Why post it here? Well, have a look at one of the company’s sample vehicles. It’s a Saab 9-3 Convertible.
The kit can be purchased with a touchscreen controller to make for some easier navigation. Creates one heck of a blind spot, though.
The Japanese company that makes these little kits is called System Design Co. Not necessarily a cheap system, but if you’re a real IT junkie, then this is probably right up your alley. And if you have a 9-3 then you pretty much know that it’s going to fit OK.