Romain Grosjean has said it was 'very special' for him to claim the RoC 'Champion of Champions' title on Sunday in Bangkok.

Sebastian Vettel and Michael Schumacher both failed to halt the Frenchman's march through the heats as he progressed through to the final against eight-time Le Mans winner Tom Kristensen in the event which pitches champions from the world of motorsport head-to-head against each other in a variety of machinery.

In a three-heat finale for the crown, the Lotus F1 driver made the title certain with a win first in the ROC Buggy and next in the KTM X-Bow, meaning the crown was his without need for the final race.

The win came a day after Grosjean and Team France team-mate and 2011 Race of Champions Champion Sebastian Ogier had came second to the Team Germany partnership of Vettel and Schumacher in the Race of Champions Nations Cup.

"Champion of Champions sounds pretty good. It certainly feels pretty special to end my year like this," Grosjean remarked.

"It wasn't an easy route to the crown either; I had Sebastian [Vettel] in the quarter-final then Michael [Schumacher] in the semi-final, then Tom Kristensen in the final. Between those three drivers you've got ten F1 titles and eight Le Mans wins! To win against these guys is very special indeed.

"It's a really fabulous event and we received a fantastic welcome in Bangkok. It's superb to be able to relax with so many different competitors from different disciplines and we all had a great time.

"It was great to see the support I received from fans at the event and online too, and this win goes out to them for supporting me in 2012. What a way to end my year, by winning my last competition of the season!"