In order to make enough money to race it, Sofronas worked as a salesman at Pitney Bowes, using the street-legal car on sales calls despite the fact it had no air conditioning unit.

He scored his first victory in the then-Speed World Challenge in 2008 at New Jersey Motorsports Park, en route to a fourth-placed finish in the championship.

[4] That same season, Sofronas began competing in the American Le Mans Series, beginning with a one-off appearance at Laguna Seca with co-driver Bret Curtis, where the duo finished fifth in class.

Partnering with Porsche factory drivers Laurens Vanthoor and Mathieu Jaminet, Sofronas took the SprintX title by just 13 points over Jan Heylen and Michael Schein.

[6] In 2023, Sofronas began his 30th season of competition under the World Challenge/SRO America umbrella, fielding the first Audi R8 LMS Evo II on American soil.

[2] Sofronas and business partner Fabrice Kutyba founded Global Motorsports Group (GMG) in 2001, an aftermarket tuning service with a particular focus on European luxury marques.