2005. Since the 2011 season, Renault Sport no longer badge their Mecachrome engines due to Renault Sport focusing on their Formula One programme. The Mecachrome V8 GP2/F2 engines were jointly developed by Mecachrome and TEOS Engineering for design, tune-up, R&D, engine maintenance, arrangement and trackside support. The GP2 Series/FIA Formula 2 Championship V8 engine formula specification was in use from 2005 and was retired following the 2017 season. New engine regulations with 620 hp 3,400 cc V6 single-turbocharged direct-injected engines, known as the Mecachrome V634 Turbo, which is a development of the naturally aspirated Mecachrome V634 used in the GP3 Series, were introduced for 2018 along with a new Dallara F2 2018 chassis while TEOS Engineering renewed its subcontract relationship with Mecachrome on track in the FIA Formula 2 Championship for 2018 beyond. Dutch turbocharger company Van Der Lee Turbo Systems supplies the turbochargers for all FIA Formula 2 Championship engines. GP3 Series/FIA Formula 3 Championship In 2015 alongside the Dallara GP3/16 car launch, Mecachrome was selected as the official engine partner of GP3 Series since 2016 season onwards. The Mecachrome V634 GP3/F3 engines are also jointly developed by Mecachrome and TEOS Engineering for design, tune-up, R&D, engine maintenance, arrangement, shared-production and trackside support. Despite the new Dallara F3 2019 car unveil, the current Mecachrome V634 which will be used by all FIA Formula 3 competitors will extend its service until at least the 2024 season. World Endurance Championship In 2017, Mecachrome partnered with Ginetta as an engine supplier for the G60-LT-P1 LMP1 Prototype, supplying the V634P1, a variant of the V634 F2 engine, which would also be turbocharged by Van Der Lee Turbo Systems. The Ginetta G60-LT-P1-AER, run by CEFC TRSM, was to compete in the 2018 24 Hours of Le Mans and the full 2018–19 FIA World Endurance Championship. However, after withdrawing from the opening WEC round at Spa-Francorchamps and achieving a fifth in class result at Le Mans, which was in reality a 41st position result in the overall standings, Ginetta dropped the Mecachrome V634P1 in favour of the AER P60B engines. This was done due to a performance deficit from the turbo V6 engine, and the lack of response to calls for a development programme from Mecachrome Motorsport, with the stated aim being to unlock the true performance of the chassis. Mecachrome Motorsport responded to Ginetta's announcement soon afterwards, also revealing that it intended to continue