The 2015 Alfa Romeo 4C is available as a 2-door, 2-seat coupe. Starting at $68,400, the 2015 Alfa Romeo 4C Launch Edition is powered by a 1.7L , 4 -cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 34-mpg on the highway. The top of the line 2015Alfa Romeo4CSpider , priced at $ 63,900 , is powered by a 1.7L , 4 - cylinder engine mated to an automatic transmission that returns an EPA estimated 24-mpg in the city and 34-mpg on the highway.