Sebastian Vettel insisted that the 2011 European Grand Prix was anything but boring from his point of view after the defending champion extended his F1 championship lead to 77 points with victory in Valencia.

The Red Bull driver led from start to finish to claim his sixth win in eight starts this season and now has such an advantage that he cannot be overhauled at the top of the points until the Belgian Grand Prix in late August at the earliest.

While the German was never headed in a race devoid of any real action of note, Vettel said he was delighted with the result and had enjoyed himself behind the wheel as he saw off the challenge of Fernando Alonso and team-mate Mark Webber.

"Maybe from the outside, it looked like a boring race but I enjoyed it so much," he said. "Of course I had some pressure from behind as the strategy was different from Fernando and Mark and they were pushing hard. I was also pushing hard, judging the tyres, trying to imagine what the end of the stint would be like.

"For some reason I enjoy this track. Last year I had a smooth race and again this year, I had a good race. It was fantastic and the team did a phenomenal job. This track is not made for us with no real fast corners, but we still managed to put everything together. A faultless weekend and I am very happy with this result."

However, despite the size of his championship lead, Vettel insisted that he couldn't afford to relax and that there is still plenty of work to be done if he is to claim the title for a second successive season.

"I don't look at the gap, it is a long season," he said, "but for sure, we have had a phenomenal start to the season. We will continue that way, that is our target, but we have to take every single race as it comes. We don't have to win by taking too many risks, but the target is still to win races.

"There is still a long way to go but at the moment we all have to enjoy it. It is incredible the achievement and the steps the team has made in the last two/three years. Every single department has got so much more professional and the amount we have learned is incredible. We have to keep doing what we are doing, and stay hungry to win races and become better and better every time."