Japan’s top single-seater series has traditionally introduced a new car every five years, with the introduction of the current Dallara-constructed car in 2019 following five years after the arrival of the previous SF14 chassis.
However, the boss of series promoter JRP Yoshihisa Ueno clarified to Motorsport.com at Fuji Speedway last weekend that its programme to improve the energy efficiency and raceability of the SF19 has in effect replaced plans for a new chassis.
The two Super Formula development cars were in action ahead of the Fuji opener for a two-day test with retired two-time series champion Hiroaki Ishiura and Koudai Tsukakoshi taking on driving duties.
As well as trying out carbon-neutral fuel and new Yokohama tyres made partially from sustainable materials, also on the agenda for Ishiura and Tsukakoshi was testing out different downforce levels in a bid to make it easier for drivers to follow the car in front.
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