Looking to buy a vr6 and have a couple of questios as is no buying guide that i can find on the net. 1-Which vr's have air con 2-is there a changer over year 3-what common problems should i look for 4-what is the average mpg not that it matters in this country what you drive they still have your pants down ~ ~( 5-whats the insurence group,and do they come with alarms? thanks