Just come across this on PistonHeads. Which? Car claim super fuels are pointless and there are no gains from it.. economy or performance... http://www.pistonheads.com/news/default.asp?storyId=18722 They so wrong because when fuel prices were... lets just say "abit" too much i started using normal Shell petrol for couple of weeks... and boy o boy did i notice the shyt economy on it... when i went back to v-power the economy had improved incredibly... i've actually experienced that FACT... and now im reading their report... i dont think they got it right. I'm not just saying this but the car felt slower after a couple of tanks on normal fuel... now back on v-power its improved. But the economy is the most noticeable thing for me by a long shot.