I think some posters here are confusing: sales tax, personal property tax, emissions fees, safety inspections, registration & licensing fees, titling fees, and insurance.
Emissions fees, registration & licensing fees aren't taxes. Safety inspections and insurance have nothing to do with state revenues, they're paid to the respective provider.
I said in my previous post that I couldn't find a current state-by-state schedule of licensing fees. The 2001 schedule that I did find had about $100-some as the highest state licensing fee. The current licensing fee for Missouri is $51.25 http://dor.mo.gov/mvdl/motorv/fees.htm#passenger
Licensing fees and property tax are recurrent on a yearly basis (not all states have personal property tax)
Safety inspections and emissions inspections are sometimes done just when the vehicle is sold and the title transferred; some states require them periodically.
The titling fee is paid once when the vehicle title is transferred.
Sales tax is paid once when the vehicle is sold.
Insurance varies so widely with the location and the driver's age, driving record, even credit rating, that someone saying how much they paid for insurance means only how much they paid; it has no meaning for anyone else.