[BPWilliams]

When I went to the DMV I was totally worried about the tags and having the car registered as a 2002 (year it was complete per DMV) when I talked to them on the phone they said "bring in all of your receipts and we will determine the year based on when the parts were purchased" with that said I ran.
I then purchased a title for a 1965 2DR (back in those days there was no model number on the title) from a reputable firm back east, made a VIN tag to match the newly acquired documents and off to the races. When I went to the DMV (Greenfield) they had to transfer the title from Wisconsin to AZ and wala historic plates. When they asked how much I purchased the car for I gave them the price that was on the title.. no harm, no foul... So let's see the math..

1965 Cobra: tags $35.00 a year, and the car is driven 3K miles a year = $0.007 cents a mile.

2004 Ford F-150: tags $500 a year, and the truck is driven 25K miles a year = $0.02 cents a mile

So on a sliding scale per use and age I think it is about right, and I feel like I can sleep another night knowing that the tax man (person) won't come and take a hub cap or something worse for back deeds.

Point of all this, there are many ways to register a cobra in AZ and pay what makes you feel good because there are no set rules in life or the AZ DMV.

Disclaimer: This is not a real story if this story was in fact true the participants names have been changed to protect the innocent....

Have fun!