You can fit a large vehicle into a surprisingly small space if you try hard enough. Here are a couple of ways…
Roman Signer – Engpass 2000
This first example is from an art installation ‘Engpass at Aussendienst’, Hamburg (2000) by Roman Signer. Thanks to Supralimen and Tate Etc for bring this to my attention. Images courtesy the artist and Hauser and Wirth, Zurich.
Roman Signer’s installation Engpass at Aussendienst, Hamburg (2000) © Roman Signer
Roman Signer’s installation Engpass at Aussendienst, Hamburg (2000) © Roman Signer
Stoke Gifford-Vertical parking 2008
This second example, which has been given a working title of ‘Stoke Gifford-Vertical parking’, was probably achieved by someone without any art training. The ‘installation’ was created in the early hours of 26 April 2008 in Stoke Gifford, Bristol and resulted in significantly less damage to the vehicle than the first method. Thanks to Bristol Traffic for that one.
Vertical parking 1
Vertical parking 2
Pedestrian Liberation 
From the position, if the car was rolled back onto it’s wheels, it would be half on the pavement. Maybe that’s where it started from and someone just got fed up and pushed it over? Wish I had the strength to that -lol-.