may I ask how old is your friend? did he got any ticket the last couple of years? I think he should lay low for a couple of years, like an Accord or a regular Jetta, just to save money. It seems anything with a turbo in it will make your insurance double, then $20 or so for each ticket, but the total drop to about half once you hit 25, at least mine did.
I pay $90 on my Z and $60 on my Camry, and I already think I'm paying too much . A couple of years ago a friend of mine paid only about $70 for a brand new 911, a ML, a 540i, and an Accord, but he has two kids and no record.