Five stars is the highest rating.
The 2015 Fiat 500 received four stars in the front crash test, five stars in the side crash test and four stars in the rollover crash test.
The Fiat 500 is on sale now at Fiat dealerships.
The Insurance Institute for Highway Safety has not rated the 2015 Fiat 500.
Standard safety equipment on the 2015 Fiat 500 includes seven airbags, including a driver's knee airbag, along with antilock brakes, traction control and electronic stability control.
Edmunds says: Car shoppers should note that the 2015 Chevrolet Spark and Ford Fiesta also earned a four-star overall safety rating from NHTSA. The 2015 Mini Cooper has not been rated.