Dennis Against Williams' Sportscar Testing Plans

McLaren boss Ron Dennis has revealed his disapproval of Grand Prix rivals Williams' decision to exploit a loophole in the regulations over the winter months.

The Williams team, who this season won their first Formula One race in nearly four years, plan to use a sportscar to test their BMW engine during the testing ban in November and December. But Dennis disagrees with the plans and said: "I think it is not within the spirit of the changes.

"To understand what the testing ban is about you have got to go back to the roots of why it took place - the main reason is to save money," Dennis added. "It required a unanimous agreement, it was put in place with over a year's notice and at the end of the day you have unanimous agreement."

It has been suggested that Williams are just threatening the plans to enforce a change in the regulations, and Dennis backed up that suggestion.

"I don't think the gain of building and modifying a sportscar to run a Formula One engine and gearbox is worthwhile - the difference you have between that and a well executed transient dyno is minimal," Dennis said.

"I can understand the motives, but that doesn't balance off the fact that this is a major commitment."