Brilliant, Ryan's a lucky lad.
Personally speaking, and this may mean I am a worse person that Ryan, I would jump at the chance. He sounds like a level headed lad and I dare say the owner isnt going to let him take it out to wine bars in Alderly Edge...and I would think that he wants to have an accident just as much as the owner wants him to i.e. not at all! As a result, I'm sure he'd drive very sensibly. Maybe a bash in the 612 for starters?
I was luck enough to be offered a drive of some lovely cars years back (not that ilk, but a 2 year old 550 etc) and when I said I wasnt keen, the owner said to me, similar to above "you probably want to smash it up as much as I want you to smash it up". I did drive the 550 (and others) and while I didnt rag them, I still go to feel what they felt like while remaining sensible. Benny, I'm sure if you were his passenger, you'd keep him sensible. I dont know of any other lad Ryan's age being give such a fantastic opportunity.