Day of Champions, the annual British MotoGP opener at Donington Park organised by Riders for Health to raise money for their life-saving programmes in Africa, will once again feature the exciting HotBuggy challenge with another all-star line-up.

MotoGP stars Jeremy McWilliams and Nobuatsu Aoki, motocross world champion Jamie Dobb, truck-racing world champion Steve Parrish, Rizla Suzuki's Niall MacKenzie and Paul Denning, plus the driver that will be hard to beat; 2003 World Production Rally champion Martin Rowe, are all promising to put on an impressive spectacle.

The HotBuggy Park arena - developed from what was the 4x4 track at Donington and now features a gravel-surface - is a rally-style stage laid out by world-renowned track designer and Rallyschool expert Bill Gwynne.

"We were very pleased by the success of last year's Day of Champions that we have worked really hard to do even better this year," explained Gwynne, who will also be demonstrating how HotBuggy karting is a serious step forward for off-road motorsport.

To top the excitement Eurosport's very own MotoGP commentator Toby Moody will, without doubt, be whisking up a frenzy with the microphone.

The HotBuggy is a single-seat, high-performance kart designed by WRC engineers and powered by a 600cc motorcycle engine. It produces 100bhp and weighs only 350kg for a similar power-to-weight ratio as a WRC car.

"The HotBuggy is great!" enthused Rowe. "The performance gives you a real idea of what it's like to be behind the wheel of a factory-spec rally car. They're lightweight, responsive and powerful, totally exhilarating to drive and highly entertaining to watch."

The Donington Day of Champions takes place next Thursday (July 22nd) from 9am. The entrance fee is ?10 for adults, and includes pit-lane and infield access, while entrance is free for any under 15s accompanied by an adult. The HotBuggy celebrity challenge will take place at 3pm.