<p>Drivers in the 25th Race of Champions (ROC) were revving their engines on Friday (December 14) in Bangkok as they prepared for a weekend of tough competition on the racetrack.</p><br /><p>The lineup includes some of the world's top racing drivers, who will compete in the ROC Thailand and ROC Asia races.</p><br /><p>This year's event brings together drivers from Formula One, the World Rally Championship, Le Mans 24, MotoGP, IndyCar and more.</p><br /><p>They will be pitted against each other in identically prepared cars.</p><br /><p>Action gets under way on Saturday (December 15) with a team competition - the Nations Cup - before the individual event on Sunday (December 16).</p>
