He didn't say one manufacturer. Effectively (I presume) he's suggesting the formula for the engine be the same across the different series.
It does make sense in today's financial clime. A company like Renault, for instance, wouldn't have to run two different engine design programs to be in both F1 and WRC. Toyota could provide the same engine across series, perhaps making it more equitable to stay in F1.
I would also suggest that, like him or not, Mosely is perhaps privy to information we don't have. This is almost confirmation, IMO, that at least either Toyota or Renault, probably both manufacturers, are indeed considering pulling out of F1. This suggestion in particular seems to favor Renault; being able to run one engine program for both WRC and F1 would no doubt save them a good bit.
You're looking at a "last man standing" game at the moment, one which Ferrari will win. I've said it before - I don't see how *any* manufacturer can justify running a racing program these days, running the losses they're taking. I'd much prefer to have F1 than to NOT have F1 at all, which is what's at stake. You'll never hear that from anyone in F1, because it devalues F1's advertising revenue - but *that's reality*.
