
The Japanese single-seater series has been experimenting with different downforce levels as part of its extensive next-generation development programme, aimed at reducing the championship’s carbon footprint and increasing the quality of the racing.
An updated version of the Dallara-built SF19 car is set to be introduced next year featuring some of these innovations, including Yokohama tyres partly based on renewable materials and new ‘hybrid’ bodywork featuring a mix of B-comp hemp fibre and carbon fibre.