I have a Fiesta 1/16 that I want to convert to a vxl. I figured the only difference between the two was the esc end the motor. So I bought a vxl-3m and a 380. It turns out that the 380 doesn't fit the motor mount. I can order the motor mount that fits the 380 but I am afraid that I also need to replace some other part. Does anybody know what parts need to be replaced? Is it possible at all without swapping out half the car?