Between the turbodiesel powerplant of the BMW M57 engine, and the turbo or supercharged Audi 3.0 V6, each is a great option ...

The smallest engine is a 999cc, three-cylinder, turbocharged petrol that produces 114bhp, while the 1.6-litre diesel produces the same amount of power. The 1.4 TFSI engine musters more at 148bhp ...