There’s a risk though that slotting in a humble four-cylinder diesel engine, such as you’ll find in the 520d ... in M Sport trim. Power comes from a 2-litre version of BMW’s modular family ...

The 520i is, according to BMW, a 'new-generation' four-cylinder petrol engine ... 2.0 M Sport Auto 5dr-58.8 mpg 7.8 s 520D 2.0 SE Auto 5dr-60.1 mpg 7.8 s 520D 2.0 Xdrive M Sport Auto 5dr-55.3 mpg 7.9 ...

520 M Sport Edition ... 39 520 M Sport Edition 520d 190 48v MHEV Auto Start/Stop 5dr Estate 39 520 M Sport Edition 520i 184 48v MHEV Auto Start/Stop 4dr Saloon 37 520 M Sport Edition 520i 184 48v MHEV ...