I found this car on the yahoo homepage, they are using a carputer for incar entertainment, at about 5:20 they have a screenshot of the dash, which has three screens showing camera views from the back of the car, the center of which has a digital dash overlay on it, showing speed, etc., how did they do that? do you just need a speedo sensor and a computer? i have looked around this forum and have not found anything like it

http://www.popularmechanics.com/auto...html?series=19