Reynard
Guru
- Location
- Cambridgeshire, UK
They all also used to have sponsorship from a variety of tyre manufacturers - Goodyear, Dunlop, Bridgestone, etc. Changing to a single standardised fuel supply would be no different in that respect to the change to only using Pirelli tyres with standard compounds.
Only when there were multiple tyre suppliers. That went west after the, ahem, US GP debacle when only six cars started the race after all the Michelin runners pulled out due to safety concerns.
The thing is, there is a LOT more money floating around in fuel / oil sponsorships than those for tyres. And money talks in motor racing, I'm afraid. Formula One is a high-speed advertising campaign, and always will be. You can thank Colin Chapman for that one.