The Porsche 718 Cayman GT4 RS is the pinnacle of Porsche Cayman, packing the 911 GT3's 4.0L boxer 6-cylinder engine, with nearly 500 horsepower. The naturally aspirated engine revs to 9,000 RPM, while ...
View post: We Saw the Nichols N1A in Person—A 2,000-Pound V8 Hypercar That Shouldn’t Be Road Legal Boxer engines feature flat, opposing pistons that move in opposite directions for smooth operation.