Ten per cent of the workforce of the company that builds Mercedes-Benz's formula one engines is to be laid off.
Mercedes-Benz High Performance Engines, located in Brixworth (UK), confirmed to the local Northampton Chronicle that "approximately 50" jobs are being shed.
The engines power the grand prix cars of works team McLaren, as well as customers Brawn GP and Force India.
German marque Mercedes' motor sport spokesman Wolfgang Schattling said the decision is due to the sport's current rules limiting engine life and development.
"It is an unfortunate consequence," he said. "Nonetheless, we will continue to manufacture high class engines such as those with which we are leading the championship."