My car came with 18" 225/40-18 tires mounted on “Durban” wheels. 

18" tires are vastly more expensive than 16", are harsher (shorter sidewall), and are far more likely to get damaged by crap New England roads.  Plus, 18" wheels just look kinda silly on a car with brake rotors that will fit inside 15" wheels. . The small performance improvement of the 18s wasn't worth the extra cost to me. 

I found a set of round “Ditto 10” wheels and tires on craigslist before I even picked up the car.

I like the style of the Ditto wheels better anyway, the Durban wheels look overly self-consious; in 10 years it'll be obvious that it was the style of 2015-2020.