Full tank of 102 (RON)/97.5 (PON) octane gas in Rothenburg...
... that's about $130.
Did not feel any power increase at normal driving, however I did hit 151mph in the Autobahn effortlessly which exceeded the 142mph in the West Palm Beach racetrack here in the USA...
-2012 E92 M3 Jerez Black/Rust Brown, M-DCT: September ED
-2008 E90 M3 Melbourne Red/Bamboo, 6MT: Gone
-2007 MK5 GTI United Grey/Grey, DSG: Gone
-2004 E46 M3 Carbon Black/Cinnamon, 6MT: Gone
-2002 E46 330i Orient Blue/Natural Brown, 5MT: Gone