Massa could lose Ferrari seat

Despite speculation that his Ferrari tenure could be nearing an end, Felipe Massa says he is 'quite optimistic' ahead of the last five races of 2006.

The 25-year-old Brazilian, however, appeared unsure of the identity of his employer for next year as he spoke to press in London.

''I'm really looking forward to having a good future, to stay in a good team,'' Massa said, after driving his red single-seater on a closed road in London as part of a promotional event for Shell.

He added: ''At the moment everything is open, but hopefully pretty soon we're going to know what's going on.''

An estimated 20,000 spectators watched the London action, comprised also of Ducati MotoGP rider Loris Capirossi and superbike's Troy Bayliss.

There is a chance Ferrari will make him a test driver again, or place him with another team.