INTERVIEW-Motor racing-Toyota cast doubt on 2010 presence in F1

* Toyota say 2010 rules must be changed

* Will not submit entry otherwise

By Alan Baldwin

BARCELONA, May 9 (Reuters) - Toyota will not enter next year's Formula One championship unless new rules published by the governing body are changed, motorsport president John Howett said on Saturday.

"If nothing changes, we won't be submitting an entry," he told Reuters at the Spanish Grand Prix when asked about a May 29 deadline.

"But I don't think that is a unique opinion among other competitors."

Howett is vice-chairman of the Formula One Teams' Association (FOTA) presided over by Ferrari's president Luca di Montezemolo, a firm critic of the governing body' plans to introduce an optional 40 million pound ($60.19 million) budget cap in 2010.

The International Automobile Federation (FIA) want the cap to encourage new teams to enter and also keep the existing 10 teams on the starting grid after Honda's abrupt departure last December.

The plan would allow capped teams to operate with far greater technical freedom than those continuing with unlimited budgets.