I am currently considering the California 30 as i need back seats and those seem to be very reliable. But i also really like the 612's. How would the 612 be for a semi daily driver. 3 times a week. Are there any years that should be avoided? Any known problems i should be aware of? I will definitely be getting a ppi. The one thing i do like about the 612 is the v12 of course and it has much larger back seats.