In our first season after returning to the DTM, we were able to win the team and manufacturers' titles together with Porsche. Together with Thomas Preining in the Porsche 911 GT3 R with starting number 91, we also secured the DTM drivers' championship. In 2025, we further expanded our success: in addition to the team title, we earned the "Rookie of the Year" award with Junior driver Morris Schuring and the drivers’ title with Ayhancan Güven. 

With seven victories between 2006 and 2021, we are the record winning team in the "Green Hell". 

In 1999, we celebrated our first GT class victory at the 24 Hours of Le Mans with a Porsche 911 GT3 R and drivers Uwe Alzen, Patrick Huisman and Luca Riccitelli.

Between 2013 and 2022, we supported Porsche's GT works entries in the FIA WEC. In the very first year, we achieved a double victory at Le Mans with two 911 RSRs. In 2018 and 2022, we celebrated two more victories in the LMGTE Pro class at the world's most traditional 24-hour race.

In 2024, we won the Le Mans debut of the new LMGT3 class under our own name with our partner EMA Motorsport – a success we were able to repeat in 2025 together with 1st Phorm. 

From 2013 to 2022, we supported Porsche's GT works entries in the LMGTE class of the FIA WEC World Endurance Championship and secured all world championship titles in the LMGTE Pro classification in both 2015 and 2019.

In 2024, we celebrated a successful entry into the new LMGT3 class of the FIA WEC together with our partners Pure Rxcing and EMA, starting with a win in our debut race in Qatar, followed by a class victory at the 24 Hours of Le Mans and finally winning the FIA WEC Endurance Trophy. In 2025, we are continuing our commitment with 1st Phorm and the Iron Dames, building directly on these successes – with 1st Phorm, we already achieved our second Le Mans victory in a row.

The first victory under the Manthey Racing name was celebrated in an NLS race on the Nürburgring Nordschleife. Over 50 more followed - making the team the current leader in the overall winners' list.

In 2024, we won both the overall standings and the Pro-AM classification for the first time on the Mount Panorama Circuit. The Grello Porsche driven by Matt Campbell, Ayhancan Güven and Laurens Vanthoor with starting number 912 won the 12-hour marathon in Bathurst by 2.6 seconds after a demanding race. Harry King, Alessio Picariello and Yasser Shahin secured the victory in the Pro-AM classification with ninth place overall.