I can imagine a good car helps. The family one I'm working with turns horribly wide with very few reference points to work with, so a lot of it is by feel which I have yet to master. I'm almost done the required 60 hours of practice time in order to take the test, but I don't feel that it's nearly enough especially for highway and parking.
If you pass the test and can afford one, I highly recommend finding a good used Honda Fit (I think called Honda Jazz in Europe). They have incredible visibility, and despite looking like a typical tiny car, they are well engineered and drive a little bit like oversized go carts. My ex-girlfriend had one, and it is the easiest car I have driven to judge distances (since you can see everything), have tight turning radices and have just a touch of sports car stability.