Weston-on-the-Green racer Graham Fennymore was crowned Autosport Caterham Superlight Challenge Champion for 2006, winning one of the day's Silverstone races and finishing second in the other to clinch the title for the Hyperion Motorsport/Ambitions Racing team.

It was 41-year-old Fennymore's second successive Caterham title - last year he won the Roadsport A crown - and adds further sheen to an illustrious racing CV, which includes Formula Ford and Formula 2000 titles from the 1990s.

Fennymore took his fifth race win of the season to wrap up the title battle with two rounds to spare.

He said: "It's great to have won the championship with a meeting in hand and good to have finished the job with a win."

Hyperion Motorsport boss Steve Hindle praised his team leader, saying: "Graham has driven magnificently all year and thoroughly deserves the crown. The meticulous car preparation of the Ambitions team played no small part. Everyone at Hyperion is delighted for him."

Fennymore and his team-mate for the weekend, newly-crowned Australian Formula 3 Champion Ben Clucas, were the class of the field all day, Clucas taking the honours in the treacherously slippery first race and Fennymore getting the upper hand in the dry race two.

Clucas led the opener all the way, outdragging pole-sitter Guy Harrington away from the lights to establish his command. Fennymore and Ben de Zille Butler followed him through past Harrington who, like many, had gambled on his suspension settings and found his car a real handful in the damp.

Clucas and Fennymore duelled all the way for 30 minutes, the gap between them never more than a second, and left their rivals trailing.

The track was bone dry for race two and Fennymore took full advantage of the better conditions to put in his championship-clinching performance. He took the lead from pole man Clucas on the opening lap and never looked in serious danger of losing top spot.

Clucas slipped to fourth behind Harrington and de Zille Butler at the start and it took him six laps to fight his way back to second. De Zille Butler wasted no time in closing down Fennymore but could do nothing about stealing victory; he was 1.1s behind at the chequered flag.

Clucas said: "I've enjoyed my weekend tremendously - there's a heck of a lot more overtaking than in Formula 3."

Fennymore was delighted with his win. He said: "I made a good start and was able to make a bit of a break. Then, fortunately for me, I think Ben and Guy held each other up a bit for a while."