I think the manufacturers should be allowed a couple of different formats of engine, I would love to see V5 or V4 or straight 4 engines allowed just to add some diversity.
As long as they are enforced to supply other teams like now or are tied in to a future supply rule and are under the same restrictions as now then fair enough.
The problem often is the teams, getting them to agree on anything, it took Dorna years to get Yamaha, Honda and Ducato to agree on MotoGP new rules, but look what happened, KTM and Suzuki came back once they were stabilised!
So if Porsche wanted to come in with their V4, can you imagine getting Ferrari, Merc and Honda and Renault to agree to whatever terms would be needed to let this happen?
As long as they are enforced to supply other teams like now or are tied in to a future supply rule and are under the same restrictions as now then fair enough.
The problem often is the teams, getting them to agree on anything, it took Dorna years to get Yamaha, Honda and Ducato to agree on MotoGP new rules, but look what happened, KTM and Suzuki came back once they were stabilised!
So if Porsche wanted to come in with their V4, can you imagine getting Ferrari, Merc and Honda and Renault to agree to whatever terms would be needed to let this happen?