[citation needed] In 2009 he was the best scorer in the León Eurocup round at Porto, winning WTCC participation at Brands Hatch.

He gained his first podium at Okayama in Race 1 after disqualification of Andy Priaulx and Augusto Farfus.

On 13 January 2016, Honda announced Michelisz as factory driver alongside Rob Huff and Tiago Monteiro.

Next year, he became a championship protagonist, but got defeated by Cyan Racing's Thed Björk in a dramatic final weekend in Qatar.

After the 2017 season, WTCC became World Touring Car Cup following the merge with TCR International Series.

[5] His only win of the year was clinched at Slovakia Ring, he was fourth in the championship while helping Tarquini to become the first WTCR champion.

In a thrilling final at Sepang, he was crowned as champion after defeating Münnich Motorsport's and Honda's Esteban Guerrieri.