The straight-six engine is a smooth performer with a simple underlying design that’s cemented in automotive history. These days, the straight-six is enjoying a recent surge in popularity as models from the Mazda CX-90 to the Ram 1500 switch to high-tech new straight-six offerings, and well-established straight-six engines from BMW and Cummins continue to advance and dominate. Today, just seven automakers are selling straight-six power. We’ll meet them, and their latest engines, below.
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