This is the Unofficial State Car in New Hampshire
An article in Popular Mechanics shows that Volvo apparently corners the market in New England. The report cites auto analyst, Tom Libby from IHS Automotive. Libby worked through the numbers and pulled data about every make and model car sold in the United States.
Only in Boston tweeted out the link and it's quite interesting. The article gives you a state-by-state breakdown.It should be noted the data collected was from 2015.