Tamiya have announced the soon release of first optional parts for the TRF420 touring car. First up is a 2.0mm aluminium lower deck that is best used on high-grip surfaces such as carpet or prepped asphalt. The chassis features herringbone-shaped cut-outs for optimised flex and it comes black anodised for wear and looks. Also new is a 1.75mm carbon fibre upper deck. 0.25mm thinner than the standard 2.0mm part, the flex upper deck is best used in combination with the above aluminium chassis or when additional torsional chassis flex is needed when using the kit standard carbon fibre chassis. Last but not least come the AC suspension bushing inserts. A standard part in the TRF419 suspension conversion kit the AC bushings are an optional part for the TRF420 with the directed bushings allowing to utilise more inward or more outward lower shock mounting positions in order to fine-tune the suspension geometry. The bushings come blue anodised, laser-engraved and in sets of two.