Introduced back in 2015 as a way of encouraging smaller Japanese teams to construct their own cars instead of relying on European imports, the Mother Chassis has become an established and popular part of the varied GT300 landscape.
A standard Dome tub and GTA-supplied engine (an unbranded Nissan V8) form the basis of one of three rulesets currently allowed in the GT300 class alongside FIA GT3 cars and SUPER GT’s own GT300 (formerly JAF GT300) machines.
But, with just two examples left on the grid in 2021 – the Cars Tokai/Inging Lotus Evora and the Team Mach Toyota 86 – the subclass has gone out of fashion in recent years, and risks even disappearing from the championship altogether in the coming seasons.
To understand why the Mother Chassis has steadily fallen out of favour with teams, it’s worth considering the state of the GT300 landscape back when it was first brought in.
Following their introduction to the series a decade ago, FIA GT3 cars quickly came to dominate SUPER…
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