Yeah I did try that, but there were two reasons why I couldn't do it:

1) I took out a loan on the car, and when they saw that it was financed under my name but my dad was the primary driver, they queried it and denied it.

2) I've established my driver history. Having yourself as a secondary driver means you have to wait two years before going up one rating. I'm already Rating 3 at 20, most of my mates are still Rating 5 because they've never insured their own car.