and the British Grand Prix where the track was invaded by the now-defrocked priest Neil Horan, who ran onto the Hangar straight, running towards the 250 km/h train of cars, wearing a green kilt and waving religious banners. After failing to complete the 2002 season due to financial difficulties, the Arrows team had their application for admission to the 2003 championship rejected by the FIA prior to the season start date. No reason was publicly given by the FIA and Arrows subsequently folded after 25 years in Formula One since 1978. 2003 also saw a major leap forward in Formula One safety, with the HANS device being made a mandatory requirement for drivers to wear at all races beginning from the Australian Grand Prix onwards. However, this was not without controversy, as many drivers voiced their complaints about the device, including Barrichello, Jacques Villeneuve, Justin Wilson and Nick Heidfeld. The 2003 season is also notable for being the third and last season that fully-automatic gearboxes and launch control were allowed to be used in Formula One, since they were reintroduced in . Both electronic driver aids had been used since the 2001 Spanish Grand Prix, and a rule-change in the technical regulations saw the FIA banning both systems for 2004. Teams and drivers The following teams and drivers competed in the 2003 FIA Formula One World Championship. † All engines were required to have ten cylinders and an engine capacity not exceeding 3000 cc, and all were of V10 configuration. Free practice drivers Three constructors entered free practice only drivers over the course of the season. Team changes The Arrows team folded several days after the 2002 German Grand Prix due to financial issues without contesting another Grand Prix. Jordan switched to Ford engines for 2003, after their previous suppliers, Honda, opted to focus on their partnership with BAR. Jordan's contract with the Japanese engine manufacturer was due to expire at the end of the 2003 season, but Honda were no longer willing to provide Jordan with free engines. A link-up with, and possible buy-out by, Asiatech was rumoured, although this did not prove to be the case, and, when funding was withdrawn from the company, Asiatech was wound down. Minardi, who had been using Asiatech engines in 2002, switched to Cosworth units for 2003. Renault took part in Friday testing sessions. People thought it was odd because not only