[1] In 2011 he won the Bathurst 12 Hour for Joest Racing alongside Marc Basseng and Darryl O'Young.

In 2013 and 2014, Mies raced in a diverse range of series and events, including largely unsuccessful returns to Bathurst and the Blancpain Endurance Series as well as appearances in the 24 Hours Nürburgring, Sepang 12 Hours and United SportsCar Championship.

[1] 2015 became Mies' most successful year to date, most notably winning the 24 Hours Nürburgring with Nico Müller, Edward Sandström and Laurens Vanthoor in the new Audi R8 LMS for Team WRT.

[6] In 2017 he won the 24 Hours Nürburgring for a second time with Kelvin van der Linde, Connor de Phillippi and Markus Winkelhock in a Land Motorsport Audi R8 LMS.

[8] Mies returned to the GT World Challenge Europe in 2023, joining fellow factory drivers Simon Gachet and Patric Niederhauser in an Endurance Cup Pro class entry for Saintéloc Racing, as well as a Sprint Cup entry alongside Grégoire Demoustier.