Winner: 2018 Mazda3 The Mazda3 is more fuel-efficient than the Mazda6. Its base engine achieves 28 mpg in the city and 37 mpg on the highway, which are good numbers for its class. The larger engine gets 27 mpg in the city and 36 mpg on the highway. The base Mazda6 gets 26 mpg city and 35 highway.
What’s the difference between the Mazda 3 models?
The Mazda3 Sport is the base model and therefore has the lowest price tag while the Mazda3 Grand Touring is the trim topping model and has the highest price tag when compared to the three Mazda3 trim levels. … Another main difference between the three available Mazda3 models includes the standard features.
How good is a Mazda 6?
Mazda 6. Sporty and stylish, the Mazda6 is an enjoyable car to drive, although it’s a bit on the snug side compared with its peers. The standard 2.5-liter four-cylinder is responsive and delivered 28 mpg overall in our tests. … We got an excellent 32 mpg overall from the smooth four-cylinder and six-speed automatic.