Lotus has confirmed that it will use Mercedes power units from the 2015 season, signing a "long-term supply agreement".

Having been powered by Renault power units since the Renault works team was renamed Lotus in 2011, the team will switch to Mercedes from next season until the end of the current engine regulations. With Mercedes being the dominant power unit this season, Lotus CEO Matthew Carter said the move should help the team challenge for victories again in the future.

"We are pleased to have been chosen by Mercedes AMG High Performance Powertrains in a significant long term deal," Carter said. "We intend to return to the front of the field with the goals of winning Grands Prix and being a strong championship contender once more and we see this new agreement as one step towards this aim.

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"The Mercedes-Benz Power Unit has shown good performance on track and it is our goal to marry this motive force to Enstone's chassis expertise. It is our desire that the E23 Hybrid, powered by Mercedes-Benz, heralds a new era of success for Enstone. At this juncture we would also like to thank Renault, who have been so closely associated with the team over its history and for the joint success we have achieved together."

With McLaren switching from Mercedes to Honda in 2015, managing director of Mercedes AMG HPP Andy Cowell said it was important to maintain three customer teams.

"We are delighted to welcome Lotus F1 Team as a customer of Mercedes AMG High Performance Powertrains from the 2015 season," Cowell said. "Lotus F1 Team is a strong technical group with excellent facilities and I am confident that together we will deliver a step forward in track performance next year.

"In 2014, the organisation at Brixworth has demonstrated that it can support three customer teams to the high standards expected of Mercedes-Benz, in addition to our focus on the works Silver Arrows. We are very pleased to have the opportunity to continuing doing so from 2015, as we seek to make further gains in both performance and reliability."