Allstate Insurance Company's 
 website offers an anonymous ballpark estimate auto insurance calculator, where we learn the following, regarding a 2010 Smart For Two:
"Ballpark estimated cost" for insuring (through Allstate) a 2010 Smart-For-Two; Passion Convertible; 2Dr; 3 Cyl. vehicle in Swans Island, ME; zip code 04685; by a 45 year old married male who owns home, has excellent bill paying history, 0 accidents in the last 5 years, 10 years of continuous auto insurance company length, as primary driver; and an 18 year old single female with 0 accidents in the last 5 years as secondary driver.

Calculated Cost:  From Allstate's Value Package 'Silver Basic' cost of $1140 to Allstate's Platinum Package Enhanced Plus! cost of $1420.
 
Auto insurance estimates typically given in 6 month coverage cycles.

In order to arrive at a more meaningful or more detailed Auto insurance estimate, contact an insurance agent, or visit insurance company websites.

All insurance costs are determined by a lot of variables, including auto insurance. We can provide a "ballpark" figure for a particular set of variables; and through a particular auto insurance company, by way of their online auto insurance calculator. 

Some of the variables that go into auto insurance costs are:
-State, city, county, zip code
-Insurance coverage options
-Drivers' ages, driving records, bill-paying habits, home-ownership, employment, length of time with insurance providers.
-Vehicle make, model, year, style, safety features.
-Typical commuting and annual mileage.
-And there are others.