First comes skeptical optimism as the door whips open with the same ... rather than a completely fresh car. A base 2018 Mazda 6 comes with essentially the same 2.5-liter naturally aspirated ...

The $21,315 Mazda 6 i five-door has a 160-hp, 2.3-liter DOHC 16-valve four. The $23,415 Mazda 6 s five-door runs the wagon's 3.0-liter V-6. Both come with the Sport package standard. A brief drive ...