Im 32 (clean record for the past 8+years) and Ive been with Mercury Insurance for the past decade. I have never experienced outrageous spikes in premiums but do get raises in fees every few years. And im usually notified by my agent before the fees occur. My current rates for my 3 vehicles are:

11' GSR $109/month
10' Audi A4 $112/month
02' WRX $85/month

 

The new z06 was cheaper than my evo when i call state farm lol

 

I have a 2010 GTS and i pay 1400 for six month in minnesota. WTF! I love my car but damn....