Lewis Hamilton is unwilling to call how the Spanish Grand Prix will pan out given the unpredictable start to the Formula 1 season.
McLaren have been on the front row in three of the four races this year but four different teams have won and no one has any idea how the Spanish Grand Prix will develop.
The Circuit de Catalunya hosts pre-season testing and, while McLaren enjoyed a good winter at the Spanish circuit, Hamilton believes the first European race of the year is wide open.
"Our performance at Barcelona during winter testing looked promising - but the form of the season is still very hard to read, so it's difficult to predict who'll be at the front next weekend," said Hamilton.
"Nonetheless, we had a great race there last year – I pushed Sebastian (Vettel) all the way to the finish. I think we have a comparatively stronger car this year, so I hope we can have another strong race."
The Spanish Grand Prix marks the first race when teams traditionally introduce a number of upgrades and team prinicpal Martin Whitmarsh believes next week race can give a true picture of where teams stand.
"Barcelona should give all the teams a clearer understanding of how the tyres behave in what's likely to be a 'typical' European race climate. But there will still be plenty to learn," he said.