Mercedes motorsport head Toto Wolff has played down Red Bull's threat of an engine development spending war in 2016 by saying the major car manufacturers agree on the need to keep costs down. Speaking to reporters on Thursday, the Austrian made clear that Mercedes and Red Bull's engine suppliers Renault were closely aligned in their strategy for the V6 turbo hybrid power unit and in regular dialogue. He added that any return of the old V8 engine was a non-starter and manufacturers like Mercedes would leave the sport if it were to happen. "Nobody can really be in favour of an all-out engine war in 2016. No serious company would allow that to happen," said Wolff. "And none of...
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