Microsoft car.
your car may stop responding under heavy load or traffic and you will be required to turn it of and back on again.
it will have a high price tag
will need regular updating from the manufacturer
everything is will be at the right place and will fit in correctly
the mechanics will be the hardware and the interior will be the software, therefore you can just buy the parts and build yourself a custom engine for your car..however you cant fiddle with the interior.. not even a bit.. not even relocating that start button..
and then we would have pirated cars all over the street and third world.. i bet its easier to catch pirated cars than software
corporates will have volume lisenced cars
they will have stylish designs (GUI)
installing accessories will be a plug in and plug out job.
your car will interoperate with pocket pc, xbox, anything M$
Open source car.
Everything comes from a different vendor with no approach to collabration.. therefore everything will just sort of work..
All broke ass nerds hacker wanna be's will own one
it will be free.. at the cost of gas guzzling
u can choose the GUI (car design) to be KDE or GNone
the car will not die on you in middlest of heavy traffic or on a race track
you will look at your cool buddies at the signal driving MS car and having all cool features which you will probably never have
your documentation is all.. gibberish figure it out yourself stuff
even to install a minor accessory in your car, you have to go through the hell of compilation and ****
you will have a lot of flavours of cars available to choose from