Hamilton is staying cool about his chances on winning the world title
Lewis Hamilton insists he is not getting carried away after back-to-back wins in Britain and Germany moved him four points clear in the title race.
The McLaren driver dominated at Hockenheim, winning his fourth race of 2008 after a pit-stop gamble paid off.
"We are really on top of our game," said the Englishman. "But we have not to get too far ahead of ourselves.
"We've got a long way to go and we've got to make sure that we can continue with this performance."
Hamilton went to Germany locked in a three-way tie at the top of the drivers' standings with Ferrari duo Felipe Massa and Kimi Raikkonen.
But another consummate driving display in his first Formula One race at Hockenheim saw him pull four points clear of Massa and seven of Raikkonen.
With eight races left to go, Hamilton threw down the gauntlet to his rivals but he insists the championship race is still wide open.
"I think it's too early to say," said the 23-year-old, who lost the title to Raikkonen by a single point last season.
"We're looking strong, but as you know in a Formula One season things change, the teams always make steps here and there.
"As you saw last year, we were chopping and changing who was the quickest and in the next few races I don't know what to expect."
The team will head to Hungary for the next Grand Prix on 3 August eager to build momentum before their summer break.
Hamilton claimed victory from Raikkonen in last season's race, but insists there is more work to be done if he to repeat the feat.
"We have got a lot of work to do for the rest of the season but if we continue with this momentum we have got then we are looking very good," he said.
"The next race in Hungary is a very good one for us, so fingers crossed."
Hamilton dominated every session in Hockenheim, topping Friday's timesheets in practice before turning that speed into pole position.
And he had built an 11-second lead in the opening stint of the race before the safety car appeared on lap 36 after Timo Glock crashed.
As Hamilton's lead disappeared, his hopes of victory nearly followed suit when McLaren made a risky pit-stop strategy.
While 11 other drivers, including his team-mate Heikki Kovalainen, came in once the pit-lane reopened, Hamilton was told to stay out on the track.
But the safety car stayed out longer than the team had anticipated, and the plan looked to have backfired.
After finally stopping 17 laps from home, Hamilton found himself in fifth place and rescued the race as he brilliantly overtook Massa and Nelson Piquet on his way to the chequered flag.
Hamilton powered to his first Grand Prix victory at Hockenheim
Despite his win Hamilton admitted he had his doubts that the team had employed the right policy.
"I think we probably should have come in," said Hamilton. "I asked 'are you sure we shouldn't be pitting?'"
"We could have perhaps done a better job but nevertheless we were quickest and it just made my job a little bit harder.
"But I told Ron, that's what you hire me to do, this is what I'm here for."