Sigma Engenharia managed by engineers Pedro Fetter and Evandro Flesch, announced few updates.
Sigma P1 prototype refuses the V8 turbo engine coupled to the XTRAC gearbox in favor of a inline-4 cylinder 1.550 cc turbo engine with a sequential six-speed gearbox.
The change was motivated by the possibility of reducing the weight of the assembly and given the limitations to engine power imposed by the regulation through fuel consumption.
https://racemotor.com.br/2020/07/27/...e-brasil-2020/