What were you fuelling it with, liquified diamond?
Fuel was only £600 ish to be fair (8 tanks), it was all the other costs that soon mounted up...
Ferry @ £300
Accommodation @ 100Euro average for 16 nights
Eating out @ 50Euro average per day
Then all the little bits and bobs....vignettes for Austria and Switzerland, entry to the Audi factory and VW autostadt, toll road fees, other touristry things and lots of bitburger and salty snacks...
Oh, not forgetting the 8 ring laps and a spin in the ring taxi @ £340 total
That said, it was an epic trip and by far the best holiday I've ever had, the places, people and things we did will stay with me forever and if I had the time and ££s i'd set off and do it all again tomorrow....