The 2018 Toyota Yaris iA is available as a 4-door, 5-seat sedan. Starting at $15,950, the 2018 Toyota Yaris iA (M6) is powered by a 1.5L, 4-cylinder engine mated to a manual transmission that returns an EPA estimated 30-mpg in the city and 39-mpg on the highway. The top of the line 2018 Toyota Yaris iA (A6), priced at $17,050, is powered by a 1.5L, 4-cylinder engine mated to an automatic transmission that returns an EPA estimated 32-mpg in the city and 40-mpg on the highway.