Norbert Siedler is an Austrian racing driver who achieved the most in sports car racing. He was among the front-runners in the Porsche Supercup for a couple of years, finishing as a vice-champion in 2011.
Siedler most recently competed in the International GT Open with Emil Frey Racing's Lamborghini.
Testing an F1 car early in a career
Born in December 1982 in Wildschönau, Norbert Siedler started his career in karting competition in 1992. He switched to formula racing in 2000, participating in the German Formula Ford and Austrian Formula 3. He then moved to the German Formula 3 Championship in 2001, scoring his only victory in 2002 and finishing sixth in the points that year.
In 2003, Siedler gest an opportunity to test a Formula 1 car for Minardi. His main racing competition in that season was the World Series by Nissan in which he scored one podium to finish 14th in the points.
Two seasons in the Formula 3000
Siedler made a debut in the Euro 3000 Championship in the last round of 2003 season, finishing third at Cagliari. In 2004, he joined Italian team ADM Motorsport for the full season in the Euro 3000 Championship, scoring two victories at Zolder and Nurburgring to finish third in the final standings, behind Nicky Pastorelli and Fabrizio del Monte.
In 2005, he raced with ADM Motorsport in the 3000 Pro Series and finished second in the championship, tied in points with Max Busnelli.
Norbert Siedler recorded one start at 24h Le Mans in the #44 LMP2 prototype
Le Mans 24h debut in an LMP2 prototype in 2007
In 2006, Siedler moved to the Champ Car Atlantic Championship in the US with Brooks Associates Racing but left the team after three races. In September 2006, he made a debut in the Le Mans Series with Kruse Motorsport, driving a Courage C65-Judd LMP2 prototype at Jarama.
In 2007, Siedler raced in the International Formula Master with ADM Motorsport, scoring two wins to finish sixth in the points, but also made a debut at 24 Hours of Le Mans with Kruse Motorsport. He was sharing the #44 Pescarolo 01-Judd LMP2 prototype with Tony Burgess and Jean de Pourtales, not finishing the race.
Five seasons in Porsche Supercup, vice-champion in 2011
In 2008, Siedler stayed with ADM Motorsport in the International Formula Master but also recorded his first full season in the Porsche Supercup. He was without wins in both competitions. Driving the #15 Porsche for Veltins MRS Racing, he improved his performance in 2009, scoring two podiums and finishing fifth in the points.
Siedler reached a peak in the Porsche Supercup in 2010 and 2011. In 2010, he won his first race, at Circuit de Barcelona-Catalunya, finishing third in the points. In 2011, he scored no wins but three podiums were good enough to finish second in the points, behind teammate Rene Rast. Siedler's last season in the Porsche Supercup was 2012. He was a race winner once, at Bahrain International Circuit, finishing fourth in the final points.
Norbert Siedler scored two wins during five seasons in the Porsche Supercup
Daytona 24 Hours debut in 2013
While competing in the Porsche Supercup, Siedler also appeared in some other competitions, such were ADAC GT Masters, VLN series or Porsche Carrera Cup Germany. In 2013, he raced with Timbuli Racing in the VLN series and with Aust Motorsport in the German Carrera Cup. In 2013, he also made a debut at Daytona 24 Hours, not finishing the race in Muehlner Motorsport's Porsche.
He returned to the US in 2014, participating both at Daytona 24h and Sebring 12h with Porsche customer teams. In Europe, his main programme was in the ADAC GT Masters with Team Herberth and in the German Carrera Cup with ZaWotec Racing.
Joining Rinaldi Racing in 2014
At Spa 24 Hours in 2014, Siedler joined Rinaldi Racing to drive a Ferrari 458 Italia GT3, not finishing the race. Then, in 2015, he joined Rinaldi Racing for the full season in the Blancpain GT Series, both in endurance and sprint races. He won two races in the Sprint Cup to finish fourth in the points.
Outside Blancpain GT Series, he raced with Haribo Racing's Mercedes at Nurburgring 24h and with Rinaldi Racing's Porsche in the VLN series.
Champagne celebration in 2016 ADAC GT Masters
Triple racing programme for Norbert in 2016
In 2016, Siedler had a triple programme. He stayed with Rinaldi Racing in the Blancpain GT Series, drove a Lamborghini Huracan GT3 for HB Racing in the ADAC GT Masters and raced with Frikadelli Racing's Porsche 911 GT3 R in the VLN series. He also joined Park Place Motorsport at Daytona 24 Hours.
Siedler was again the all-rounder in 2017, racing in a Lamborghini in the ADAC GT Masters and Blancpain GT Series, in a Porsche in the VLN series, reaching a podium at Gulf 12 Hours in a Ferrari and driving a Lexus in the International GT Open.
Siedler was driving a Lamborghini Huracan GT3 for HB Racing in 2016 and 2017
Splitting time between Lexus and Porsche in 2018
In 2018, Siedler continued to split time between different manufacturers. His main job was to drive the #114 Lexus RC F GT3 for Emil Frey Racing in the Blancpain GT Series. His best result was the third place in the endurance race at Silverstone.
On the other side, he had a commitment with Frikadelli Racing Team in the VLN endurance series, scoring one victory in a Porsche 911 GT3 R. He raced in a Porsche at Daytona 24h also.
Norbert Siedler in 2018
Vice-champion in the 2019 Internation GT Open
In 2019, Siedler stayed with Emil Frey Racing, driving a Lamborghini Huracan GT3 in the International GT Open. He was sharing a car with Mikael Grenier, scoring four wins and finishing second in the points.