If I built a car, it'd be totally new. Here are a few of the things that I'd do. . . Jack has designed the ultimate fantasy car. Inspired by zeppelins and trains, Cadillacs and old planes, with brilliant colors and lots of shiny chrome, this far-out vision is ready to cruise. There's a fireplace, a pool, and even a snack bar. After a tour of the ritzy interior, Robert the Robot starts up the motor . . . and Jack and his dad set off on the wildest test drive ever.