Looks like they have lower rates for historical vehicles. Not sure how yours are registered.
Code:
HISTORICAL
ASSESSMENT PERIOD ASSESSMENT VEHICLE
7-1-11 TO 6-30-12 145.00 29.00
7-1-10 TO 6-30-11 143.09 28.62
7-1-09 TO 6-30-10 124.89 24.98
7-1-08 TO 6-30-09 104.58 20.92
1968 400 Coupe, verdoro green, black vinyl top 1968 400 Convertible, verdoro green, black top 1971 Trans Am, cameo white, auto 1970 Buick Skylark Custom Convertible 350-4(driver)