Why do you want an undertray, the chassis is alloy and doesn't need one unlike carbon chassis cars.
Do 1/8th cars use them? No
Did the origonal Cougar have one? No
Did the RC10 have one? No
The list goes on and the reason why they didn't? They didn't need one.
The only type of person that wants one is a very anal person, so what if it gets scratched. If the chassis gets scratched it doesn't alter the rigidity or strength.
If you really want to protect the chassis get the Associated stick on stuff.
