Mika Hakkinen has revealed that he has decided to revert to left-foot braking - the technique he used to win two Formula One World Championships - in an attempt to put his title bid back on track, according to this week's Autosport.

Hakkinen has braked with his right foot since returning to full-time competition in the DTM with Mercedes, but braking issues at Hockenheim and Oschersleben, which meant complete overhauls of the brake system on both occasions, led him to questioning his driving style.

In a pre-Brands Hatch test at EuroSpeedway Lausitz, Hakkinen tried left-foot braking for the first time in his Mercedes C Class and says he is now more confident to push it to the limit.

"I've been struggling, to be honest," he admitted. "I have not felt comfortable right-foot braking but, because we use a manual gearbox, I have been focusing on heel-and-toe and using the clutch to change gear.

"After Oschersleben I decided I was going to left-foot brake again, like I always did in Formula One.

"I tried it when I first started testing the DTM car, but since then things have developed and the car can cope better with the demands of left-foot braking.

"I now feel very comfortable and confident again - I feel good in my office.

"It's a big, big, big change from a driving point of view. It is increasing the quality of my feedback for the team, because I am much more relaxed with my driving. My lap times have been more consistent and quicker."