They are about as powerful as the small form factor mobo-cpu combos that are available for these types of projects anyway. You can get most of the functions you want/need (phone, bluetooth, music, movies, GPS) with the exception of controlling the HVAC. And as a bonus you can take it with you and use it the rest of the time you are *not* in your car. Trust me, I looked into doing this for my 2005 Subaru Impreza, the DIN slot was the right size and everything, but it was completely not worth the time/effort. Some other guy had already done it so I even had steps to follow, but to get it to look right, he had to get some plastic custom fabbed from a machine shop. If you're planning on doing the car-puter for any purpose other than fun/hobby, you're wasting your time.