Audi's Head of DTM Dieter Gass has warned BMW that his RS5 machines will be going all out at this weekend's Hockenheim finale to snatch the manufacturer's title away from the defending champions.

The famous 'four rings' still remain with a shout of taking the manufacturer's crown after Mattias Ekstrom's Zandvoort victory reignited the Audi charge. BMW currently lead the chase by 21-points with one round of the championship to play.

Despite Audi not having taken a victory in 2014 up until Ekstrom's fourth career Zandvoort success, the RS5 has proved to be a consistent podium and points scoring machine while BMW and Mercedes have each taken more victories than the Ingolstadt marque.

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BMW have already stormed to the 2014 drivers and team titles courtesy of the exceptional Marco Wittmann and Team RMG combination but Audi are ready to throw once last dice in denying the Munich marque an unprecedented 'triple crown'.

"The victory at Zandvoort has given us additional tailwind for attacking again at Hockenheim," said Gass.

"The title of the best manufacturer is our aim - we're going to jointly battle for it. The pole position clinched by Adrien (Tambay) in the season opener at Hockenheim showed that our RS 5 DTM works well on this track."

Audi's current lead driver Ekstrom hopes his second position at the Hockenheim season opener will stand the Zandvoort winner in good stead as the two-time champion looks to maintain his winning form.

"It was a great feeling to wake up as the winner on the morning after Zandvoort. I'd like to enjoy this moment again after the finale at Hockenheim," said Ekstrom.

"In second place, I had a good start of the season in May. Now I'd like to finish another place further at the front."