What brand was Bruno Spengler affiliated with as a driver?

Bruno Spengler served as a BMW M Motorsport works driver from 2012 to 2024, playing a key role in BMW's return to the DTM series and winning the championship in 2012. Additionally, he was an ambassador for BMW M Motorsport Automotive Gaming, representing the brand in various capacities during his tenure. After the 2024 season, Spengler concluded his 13-year association with BMW at his own request to pursue new professional challenges.