What's The Hardest Car To Park?

A lot of people, even people who have cars they can see out of, have a hard time parking. But what car is inherently difficult to park?

This question is inspired by the poor valet that had to park an Aventador in Monaco. It has to be one of the toughest cars to see out of and the controls are difficult for someone that has never operated a Lambo before.

So what car is truly impossible to keep in the lines? And don't say a tractor trailer. That is not a car.