London: Lewis Hamilton has unfinished business to put right in Valencia this weekend in a European Grand Prix that promises trebles all round for the Formula One championship leader and his McLaren team.

The Briton finished runner-up in the only two races held to date on the Spanish street circuit but this year looks very much like it could be third time lucky for the fired-up 2008 world champion.

Hamilton is chasing his third win in a row, while McLaren are targeting their third successive one-two.

World champion Jenson Button, also chasing his third win of the season, is three points behind his younger McLaren team mate.

McLaren, who last racked up a hat-trick of one-two finishes when Alain Prost and the late Ayrton Senna were together in 1988, let Hamilton down with a poor pitstop last year after he started on pole.

"I'm really looking forward to racing in Valencia," said McLaren, aged 25.

"I had a great, attacking race there last year but I've finished second for the past two seasons, so I feel like I have some unfinished business.

"The last few grands prix have had some fantastic racing. It would be great for all the Spanish fans if we can have a great race here too.

"It's not a circuit where we've seen too much passing in the past, but I think this year could be different: The grid is so tight, there were battles all through the field in Montreal last week, so I think we could have a close and exciting race."

Formula One has already seen five championship leaders in eight races with the top five separated by a mere 19 points.

While McLaren are the favourites, the local fans will be expecting another red letter day for Fernando Alonso.

At the slower end, newcomers Lotus are celebrating their ninth race.