Data analysis finds only 24 out of the 704 people who appealed their cars' state-assessed value in the past three years were able to get a Rhode Island commission to reduce the value of their car.
The Rhode Island Vehicle Value Commission sets the value of the cars to determine a person's car tax bill. The value is based on a guide by the National Automobile Dealers Association.
Officials with the American Civil Liberties Union say the commission should consider other factors, such as the vehicle's age, to determine a car's value.
Gov. Gina Raimondo is proposing to cut the car tax by 30 percent next year. House Speaker Nicholas Mattiello says he wants to eliminate the tax completely over the next six years.