stop driving your damned cars and buy a bicycle! Especially in the summer its everything but a punishment.
So far I did not manage to mount my 600W stereo on a bicycle. Takes up half of the space in my trunk. But considering smartphone development these days, everything might be possible soon. People will hate me even more then.
However, I was just refuelling an hour ago for 10 €uro. Super E5, 95 octane, 1,699 €uro per liter.
Ah, and if any developer comes around looking for inspiration for his next eastern front map, I got this lying around for quite a while now: