Well i have my results back, after running petrol through the motor ( i do quite a bit of driving atm) my latest results show that I get approximately...

FULL TANK RESULTS:

BP Ultimate: ~527km (Tested This Week)
Shell V-Power: ~540km (Tested Last Week)

When driving normal and during "Spirited Drives" i still find that Shell's V-Power fuels have a low/mid end torque gain compared to BP/Vortex. I can usually tell the differance between ~2500rpm-5500rpm. Although the differance isnt something thats going to warrant travelling that much further or spending much more to get it.

Don't forget these are approximate figures.

XD Have a good day GUYZ && GIRLZ!