The BMW 5 Series midsize luxury sedan is now in its seventh generation, still going head-to-head with the Audi A6 and Mercedes-Benz E-Class. Among the changes for 2022 is the addition of the highly explosive and exclusive M5 Competition CS, which happens to be the most powerful production car BMW has ever made. It features a twin-turbocharged 4.4-litre V8 engine capable of unleashing 627 horsepower. A plug-in hybrid variant is also available.