theodp writes: Cars.com's David Thomas speculates that the iPad could prove to be a serious problem for automakers that charge a ransom for rear entertainment systems. The base iPad, Thomas notes, costs far less than most DVD options offered by automakers. Ford charges $1,995 for a dual-headrest-mounted DVD system in its Flex crossover. The Acura MDX is $1,900 for its single screen system, which has three wireless headsets and a 9-inch screen. At $500 a pop, giving two kids their own iPads would cost far less than what the automakers charge for an ICE system. Time for Meat Loaf to record Paradise by the iPad Light?