Here's a project I wanted to do 3 years ago. Since then I've starred at the box hoping Carrera would release a chassis that fit. This past weekend I got a wild hair and went for it. I started with the Carrera D124 C6R. I had to cut about 1/8 in out of the chassis to shorten it. I then used some brass box tubing and screws to put it back together. I used a Slot-Factory rear end kit so I could use the wheel off a Scaleauto BMW Z4 and I used the interior from a Carrera GT3. I left the race driver in and removed the roll cage. Just pretend he's at his local auto cross! The chassis photo is pre-Slot-Factory parts.