Motorbase Performance has started the search for a new commercial partner for the 2010 Dunlop MSA British Touring Car Championship after confirmation that its deal with Wrigley's is to come to an end.

The deal had seen the team running under the banner of Airwaves BMW during 2009, with Rob Collard and BTCC rookie Jonathan Adam helping the team to finish fourth in the teams championship.

Collard, who won at Brands Hatch and Donington, headed the team's challenge on the drivers championship with sixth place in the standings.

Despite the success of the partnership, Wrigley's has now revealed that the Airwaves brand will not be continuing its deal into 2010 due to the evolving focus of the Wrigley business in the UK.

The announcement comes after the company also ended its deal with the GSE Racing team at the end of the British Superbike Championship season; one which saw Leon Camier secure a dominant title win for the Airwaves Yamaha team.

"The association with Airwaves has been a huge success for both sides of the arrangement," Motorbase boss David Bartrum of said. "Airwaves was a brilliant partner for our second season in the BTCC and their support helped lift the awareness of the team to a new level. We are also very proud of the job we did for them and I would like to thank everyone involved at Airwaves for being such a first class partner.

"We've got a great deal to offer to our [prospective new] partners. We are very focused and have a first-class team of people. As well as the BTCC campaign, we will have a major presence in the Porsche Carrera Cup GB."

Having tested Andrew Jordan, Alex MacDowell and former driver Steven Kane earlier this month, the team will continue its 2010 driver evaluation programme at Brands Hatch later this week with Porsche Carrera Cup champion Tim Bridgman and GT racer Ben Collins both spending time at the wheel of the BMW 320si.