Sugden's sports car racing career began in 1997 with an entry in the
British GT Championship. In his first year, he won the GT2 title, alongside
Steve O'Rourke in a
Porsche 911 GT2. He then went on to win the GT1 titles in both 1998 and 1999, in a
McLaren F1 GTR and a
Lister Storm GTL, respectively. After already competing in the
24 Hours of Le Mans race (where he finished fourth overall in 1998 in the EMKA McLaren), he moved to full-time International GT racing in 2000 with the
FIA GT Championship where he has 9 wins and was runner-up in the GT2 class in 2005. He was winner of the Porsche Cup in 2005, awarded by Porsche to the driver of any privately entered Porsche car in selected racing or rally championships worldwide where points are scored through the season according to the ranking of the series. He is only the second British driver ever to win that Cup. He has also competed in the
American Le Mans Series in a Porsche, finishing second in GT2 in the Sebring 12 hours, the
Daytona 24 Hours race, the Le Mans Series, and made a return to the British GT championship. In 2007, he was the Asian Porsche Carrera Cup champion, finished third in 2008 and finished second by one point in 2009. In 2011, he finished second in GT in the Daytona 24 hours driving a Porsche for Paul Miller Racing. ==BriSCA F2 Stock Cars==