The 306 cover a tuned FF01 instead of the FF02..

The FF01 is (along with TA01-02) one of my favourite chassis. This one features a lot of original tamiya Hop Ups, including a graphite upper & lower chassis, full ball bearings, adjustable upper links, aluminium motor mount, aluminium king pins, stainless steel suspension shafts, universal shafts and a powerful Acto Power 2wd 'Purple' motor, that make this car a street rocket. I complete the package with a Peugeot 306 WRC body and 4 wheels from a Ford Focus WRC (unable to find the original 6 spokes wheels..).