IndyCar to control engine switches

IndyCar teams will no longer be able to change engine suppliers mid-season without permission from the series following a rule amendment introduced this week. "The intent of the rule is to try to help build a partnership between a team and its engine manufacturer," said Trevor Knowles, IndyCar's director of engine development. "Having a long-term commitment helps ease concerns about confidentiality of any information the manufacturer may share with a team.

Source: http://www.iracing.com/inracingnews/real-world-racing/indycar-news/indycar/indycar-to-control-engine-switches

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