How do you make a car reverse?

[vk2189]

Hello,

I am struggling to figure out how to make a mousetrap car stop and reverse. Any help or guides would be appreciated.

Thank you.

[Things2do]

Hello,

I am struggling to figure out how to make a mousetrap car stop and reverse. Any help or guides would be appreciated.

Thank you.

I just have my drive string do a U-turn around my attachment peice.

Edit: Here's a better description of how to do it.