Racing in a discipline that mandates 'pump fuel' only this is something that interests me ..... there have been back to back dyno tests using the range of 'premium' fuels available ..... V-Power was the only one that showed a noticeable power increase and is pretty much universally chosen by racers confined to 'council' fuel .... still very modest (there's no 'supercharger in a pump' sat on any garage forecourt) .... but racers will take any free improvement however small ..... there are other reasons to use premium fuels and I've not seen a credible comparison of their other properties.
K
