Nico Rosberg said he was pleased to earn a place on the front row for the Indian Grand Prix but admitted he was wary about the possible challenge of Mark Webber on race day.
The German qualified second fastest behind champion elect Sebastian Vettel at the Buddh International circuit, although he was some seven-tenths of a second down on the Red Bull man.
While Vettel was on the same strategy as Rosberg in running the soft tyre, Webber will line up directly behind the Mercedes driver but on the harder compound medium tyre.
For that reason, Rosberg said he would have to aware of the challenge from the Australian behind as he seeks to help Mercedes move closer to Ferrari in the constructors' championship.
“We have tried a lot of different things in the practice sessions this weekend to try and find an extra one or two tenths and I found a good set-up with my guys so I'm happy with our work so far,” he said. “I just wanted to qualify 'best of the rest' today so I'm really happy with second place and starting on the front row.
“The race will be tough against Mark tomorrow, though, as he has the quicker car and is on a different strategy, but we'll give it our all. For our team, the most important thing is to score as many points as possible so we can secure second place in the Constructors' Championship at the end of the year.”
Team-mate Lewis Hamilton meanwhile was third quickest, and he admitted he was pleased with the performance after a 'tough weekend' to date.
“I'm pleased with third place today as it's been a tough weekend to get the car set up and squeeze as much performance as possible from it,” he said. “The team have done a great job to make progress since Friday and I'm delighted for everyone to see both Nico and I in the top three today.
“It was a good lap although I lost maybe a little bit of time at the last corner. Of course, tomorrow is what counts and the race will be difficult with the different strategies and tyre choices. We'll hope for a good start, get rid of the softs early and then focus on pushing as hard as we can on the primes.”