2018 Mazda6 vs 2018 Mazda3

Passenger side exterior view of a white 2018 Mazda CX-5 on the left "vs" driver side exterior view of a gray 2018 Mazda CX-9 on the right

So, you know you want a Mazda vehicle, but you aren’t sure what one to get? We’re here to help you choose between the 2 Mazda sedans; the 2018 Mazda6 and the 2018 Mazda3. Both have their own qualities, but if you are looking for specific things on a vehicle, then you just might find yourself wanting one over the other.

Before we begin, you’ll probably want to know that we are taking the specs from the lowest trims of each vehicle. That means you’re seeing the 2016 Mazda6 Sport with the 2.5L 4cyl engine, and the 2018 Mazda3 Sport with the 2.0L 4cyl engine. Now, let’s take a look at the power, space, fuel efficiency, and exterior dimensions of both vehicles.

Power, space & fuel efficiency

2018 Mazda6


2018 Mazda3

187 hp Horsepower 155 hp
24/33 mpg Fuel Economy (city/hwy) 28/38 mpg
16.4 gal. Fuel Capacity 13.2 gal.
14.7 cu. ft. Cargo Space 12.4 cu. ft.

The 2018 Mazda6 does have more power than the 2018 Mazda3, but it does come at a price, as the Mazda3 has better fuel economy. However, the Mazda6 does make up for it with a larger fuel tank, so you could still potentially find yourself stopping less at gas stations in the Mazda6 than you would in the Mazda3, depending on road conditions and your own driving style.

So now we know that the 2018 Mazda6 is more powerful and roomier than the 2018 Mazda3. Being a larger car, that isn’t terribly surprising. Take a look at some of these dimensions to see how much larger the Mazda6 is.

Exterior dimensions

2018 Mazda6


2018 Mazda3

72/4 in. Width 70.7 in.
57.1 in. Height 57.3 in.
192.7 in. Length 180.3 in.
59.6 Cubic Feet Maximum Cargo Volume 71.2 Cubic Feet

So, if you don’t mind a slightly smaller car that has better fuel efficiency, but not as much power, then you might want to go with the 2018 Mazda3. However, if you are looking for a powerful vehicle that has more space, then you’ll probably end up choosing the 2018 Mazda6 over the 2018 Mazda3.

Interested in a Mazda vehicle? Feel free to contact us here at Vic Bailey Mazda! We will be happy to help you pick out your future vehicle.

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