The BMW X3 is one of the quickest and most nimble-handling of the compact luxury-brand crossovers; yet it's also one of the most fuel-efficient with the 4-cylinder xDrive30i. The sporty styling of the ...

As implied by their model designations, the X3 20d uses BMW’s 2-litre turbocharged four-cylinder diesel engine, while the X3 30d packs a 3-litre inline-six turbodiesel. The former develops ...