4 cylinder engine car review. The Real Reason New Cars Have 4 Cylinder Engines, DIY and car review with Scotty Kilmer. I4 engine explained and why so many new cars use them instead of 6 cylinder engines. Inline 4 cylinder engine vs V6 engine, which is better? How 4 cylinder engines work, the pros and… Continue reading The Real Reason New Cars Have 4 Cylinder Engines