Fløene's co-driving career began in the 1980s, mainly entering into Norwegian events and occasional WRC and ERC rallies through the 1990s. He gained a great deal of experience of international rallies in the new century, sitting with a number of drivers. Fløene began co-driving with a then 17-years-old Mikkelsen in 2006 on various British events, winning 6 rallies outright that year including their debut outing together. The partnership lasted for 5 further seasons beginning with a limited WRC campaign in 2007.
His partnership with Mikkelsen restarted as he joined Volkswagen Motorsport himself in 2014, replacing Markkula mid-season.[3] He got his first WRC podium on his second rally at Volkswagen and they both got their first WRC win at the 2015 Rally Catalunya.
In 2016 it was announced he would become Mads Østberg's co-driver at M-Sport whilst Anders Jæger took over from Fløene at Volkswagen.[4] Fløene would reunite with Mikkelsen once again in 2021 to compete in WRC2 with Toksport WRT.