GB4 will utilise the well-established Tatuus F4-T014 chassis, which has notably been used in Spanish, Italian and ADAC F4 series across Europe over the past seven years. The F4-T014 is not only a superb race car, but an enormously safe one too, ideal for drivers from as young as 15 years of age to make their first steps on the single-seater racing ladder – no serious injuries have been recorded in more than 400 races and 140,000 racing laps.
Use of the Tatuus F4 chassis also allows for some overlap with GB3, which uses a car built from the same base. Cars are expected to be available from around £30,000, complete with an engine, whilst existing GB3 teams can use 80% of the same spares whilst maintaining and preparing cars across two championships. Cost minimisation and controls will also be implemented by series organiser MSV.
Engine parity will be optimised by existing GB3 partner Mountune, working in conjunction with Tatuus and Autotecnica Motori. The car will run exactly as it has done in F4 competition, with a 1.4-litre turbocharged engine, producing 160bhp and a sequential paddle shift gearbox.
GB4 will also retain relationships with many of GB3’s existing partners. These include F1 tyre supplier Pirelli, which will continue to supply rubber, whilst Sunoco will act as control fuel provider.