cheerful, quietly modest manner, and genuine enthusiasm" made him popular with fans of motor racing. A leader of the IndyCar safety and promotional association alongside Dario Franchitti and Tony Kanaan, Wilson increased his lobbying for improved safety after the death of Dan Wheldon in 2011. He aspired to have retention walls altered to better deal with airborne crashes, and wrote an online article arguing for the shifting of trackside grandstands to inside racing circuits as a means of shielding spectators from debris. Nicknamed "Bad Ass" by his driving instructor colleagues at PalmerSport in 1999, for being "as fearsome a competitor you could ever find", Wilson was friendly, shy, endearing, soft-spoken and highly analytical. His technical shrewdness provided teams with extensive performance alterations to improve a race car. According to Racers Mark Glendenning this made Wilson a driver who "commanded universal respect" from fellow competitors. For DailySportsCar editor Graham Goodwin it created an image of Wilson as "a very rare breed indeed, a man in the modern age who had competed at the highest level in multiple motorsport disciplines", and a driver who "had the cutting edge". Wilson was fast-witted and used this in his humour. After Wilson's death, the donation of his organs helped to save the lives of five people. On 27 August IndyCar drivers Marco Andretti, James Hinchcliffe, Josef Newgarden, Will Power and Graham Rahal converted what had been a previously planned promotion for the season-ending Grand Prix of Sonoma at Sonoma Raceway by driving their cars across the Golden Gate Bridge in San Francisco into a tribute for Wilson. Andretti drove Wilson's No. 25 car. Honda and Andretti Autosport employed Wilson's close friend and fellow driver Oriol Servià to drive his car in Sonoma. Joey Gase, a NASCAR Xfinity Series driver, carried a photograph of Wilson on the rear of his No. 52 car to promote awareness of eye, organ and tissue donation. A. J. Allmendinger had his former teammate Wilson's name above the window of his vehicle for the final 12 rounds of the 2015 NASCAR Sprint Cup Series. At the 2016 Indianapolis 500, Stefan drove the No. 25 KV Racing Technology car in honour of his elder sibling. The name of a hairpin turn on the Snetterton Circuit's 300 layout was changed from Montreal Corner to Wilson Corner by the track's owners MotorSport Vision in July 2016; a board at the corner features the design