a laptop? no way. its more convinent to start your car and a 6.5 inch screen slide on out. if your by yourself where are you gonna put it, on the seat? if you put the brakes it will slide off and its dangerous looking at a screen all the way to the right. then nobody in the back could see. when i go to Korea on the 16th of this month i am gonna pick some screens for the back headrests. So i can watch a action movie and my daughter can play PS2 with headphones on one screen and my wife can watch something else too. there is no need for anything to be portable. hey you pay for what you get.