the car on the left is the xpress. stand the servo up and and mount the metal guard over it to keep the servo in place. i put double side tape on top and bottom of the servo
ill try and get some pictures of the car and how it was setup!
also if you need parts for the car you can go to ULTIMATEHOBBIES.com
or give them a call. they have everything in stock and will be able to help you way more than i will.