Also aiding the improved performance is local engine development work being conducted out of the former SBRE ( Stone Brothers Racing Engines ) , which has helped eke more power from the AMG M159 engine .
The team is scoffing at pitlane reports of a 40 horsepower gain .
Also aiding the improved performance is local engine development work being conducted out of the former SBRE ( Stone Brothers Racing Engines ) , which has helped eke more power from the AMG M159 engine , although the team is scoffing at pitlane reports of a 40 horsepower gain .