Transporter for Racers
You can put two cars on its. The red and yellow bricks are designed to touch the wheels. Alternatively, you can put two small bricks in middle so you can hold the racing car firmly.
Waiting for Inventory to load
Use LEGO Digital Designer to open these files and generate step by step building instructions.
This MOC also has a 3D digital file available (eg LDD, MPD, etc): 3D Model