Sporty 'M Sport' trim is standardised this time round and prices start from around £40,000 for the entry-level 420i. There's a further £2,500 premium if you want the 420d diesel version - which can be had with xDrive 4WD for another £1,500 more. You're looking at around £45,000 for a 430i. And think in terms of around £55,000 if you want the M440i xDrive model.
As an option, there's an 'M Sport Pro' package which includes a special 'Sprint' function for additional bursts of speed and a sporty engine soundtrack in the cabin when the 'SPORT' driving mode is activated. Plus you get M sport brakes, 19-inch 'M light' alloy wheels, a rear spoiler in a high-gloss black, BMW individual high-gloss 'Shadowline' trim with extended features and BMW individual lights and M seat belts. You might also be interested in a browse through the M Performance Parts portfolio, from which you can order things like 20-inch M Performance forged light alloy wheels in a Y-spoke design with a Jet Black matt finish. Or maybe a carbon fibre finish for the front grille, front splitter and side skirts, as well as aero flicks for the front apron in high-gloss black.