Mike Rockenfeller says he was pleased with his drive to second place at the Lausitzring on Sunday, but is aiming for improvement in the coming races.

Rockenfeller finished second to Mercedes' Gary Paffett in a closely fought contest in Germany, and now shares the lead of the drivers' championship with Bruno Spengler on 59 points.

The German, who took victory in round two of the DTM Championship at Brands Hatch in May, says he maximised the performance of his Audi but had to concede to Paffett's superior pace: "It was a very good race," said Rockenfeller.

"Starting from position six, we squeezed out the maximum. I even came close to being able to battle for victory but, in all fairness, you've got to admit that Gary (Paffett) was simply faster in the end."

The DTM Championship now takes a month's break, before heading to round five at the Norisring in July.

Rockenfeller says he was pleased with the car's pace on Sunday, but wants the team to step up again for the next race: "It was a clean race and we were quick," he added.

"We've still got to improve some more, though: There are some tracks coming up, particularly the next one, where we haven't been so strong up to now. But we're aiming and - have to - achieve the maximum there as well."