BMW introduced the sporty 4 Series in 2013 and the Coupe, Convertible and Gran Coupe versions have been given a makeover for 2017.

It has been a popular choice in the UK with sales here only being beaten in the USA and even outselling those bought in BMW's homeland of Germany.

Style-wise the defining feature at the front of the new BMW 4 Series is an unbroken central air intake with an aperture that increases in size towards the outer edges and on the Sport version, the air intake is almost entirely bordered by a high-gloss black bar that is designed to accentuate the vehicle's wide, powerful stance.

All versions are now equipped with new twin LED headlights as standard and LED front fog lights also form part of the standard specification. Changes at the rear also feature new light clusters.

Interior improvements include the surrounds for the air vents and the control panels in the doors now include electroplated inserts and the air conditioning and audio controls in the BMW 4 Series models are now bordered by chrome.

The sports steering wheel, fitted as standard now have a new rim wrapped in quality leather, with a modified lining that offers the driver a better grip.

There's a wide choice of power plant on the latest 4 Series. It is available with three petrol engines offering the following power ratings: the 420i with 184bhp, the 430i with 252bhp and the top-of-the-range 440i with 326bhp.

Claimed combined fuel consumption is 35.8-51.4mpg, while CO2 emissions range from 127g/km to 185g/km.

There is also a choice of three diesel engines: the 420d with 190bhp, 430d with 258bhp and 435d xDrive with 313bhp. Consumption ranges from 47.9-70.6mpg with CO2 emissions of 106-155g/km.

Depending on the particular model, the BMW 4 Series Coupé, BMW 4 Series Convertible and BMW 4 Series Gran Coupé can be specified with either a six-speed manual gearbox or eight-speed Steptronic transmission, which is already fitted as standard on the BMW 430d/BMW 430d xDrive, BMW 435d xDrive, BMW 440i Convertible and BMW 440i Gran Coupé.

Some of the latest BMW 4 Series can be specified with the optional BMW xDrive all-wheel-drive system instead of classic rear-wheel drive.

Additional high-tech gear has also been offered on the latest 4 Series including navigation, telephone connectivity, display and controls systems.

BMW is also offering the digital cockpit as an option for the BMW 4 Series, which gives the driver the choice of different digital display options for the instrument cluster. The fully digital colour display featuring black panel technology for the cockpit which provides driving-related information in an individually selectable design depending on the driving mode selected.

Prices for the latest 4 Series BMW start at £32,525 for the 420i and on up to £64,110 for the top-range M4 convertible.