Flat-Plane Crank

In a flat-plane crank V8, the firing order alternates evenly between cylinder banks. This improves exhaust scavenging efficiency and allows the engine to rev much faster and higher than a traditional cross-plane V8 (which has a 90-degree offset and requires heavy counterweights). The trade-off is increased vibration (NVH), which is why it is usually reserved for exotic cars like the Ferrari 458, McLaren V8s, and the Corvette Z06.