Just did a quick comparo on fuelly.com on the average mpg between the 2015 Mirage vs 2015 Spark vs 2015 Fit vs 2015 Yaris. Mirage is kicking butt.
Based on data from 13 vehicles, 253 fuel-ups and 66,275 miles of driving, the 2015 Mitsubishi Mirage gets a combined Avg MPG of 39.01 with a 0.94 MPG margin of error.
Based on data from 8 vehicles, 88 fuel-ups and 22,953 miles of driving, the 2015 Chevrolet Spark gets a combined Avg MPG of 35.57 with a 1.45 MPG margin of error.
Based on data from 307 vehicles, 6,820 fuel-ups and 1,871,627 miles of driving, the 2015 Honda Fit gets a combined Avg MPG of 35.82 with a 0.14 MPG margin of error.
Based on data from 11 vehicles, 147 fuel-ups and 44,491 miles of driving, the 2015 Toyota Yaris gets a combined Avg MPG of 37.22 with a 1.46 MPG margin of error.