Nice car..
I've got a Fiesta R5 in 1/10th scale.
(So i finally DO have a scale model of my mk7.5 Fiesta..)
Mine is on a carbonfiber with aluminum chassis from Corally
(Dutch brand with some Serpent parts in it)
However i kept the chassis stock,as it's really good already.
I did upgrade the motor to a 4300KV brushless one..
Even with my old 2000 MaH batteries it's very fast😀