Last week, our spy photographers spotted the facelifted BMW 4 Series Coupe undergoing final tests in Germany. We mentioned that, with the changes made to the Coupe, the rest of the lineup will follow. Just a few days ago, we released photos of the updated M4, the 4 Series' high performance model.

BMW 4 Series LCIThis time, it was the 4 Series Cabriolet that was seen testing and it appears that it is packing the M Sport kit. Like the Coupe, it gets a slightly reworked front and rear bumpers, as well as mildly tweaked headlights. The 4 Series lineup will also be available with LED headlights, as seen in this test car. Redesigned tail light clusters are also to be expected.

Inside, it will also get higher quality materials just like in the 3 Series. The iDrive system will also get updates for this minor model change. WLAN hotspot and LTE connectivity will be part of the ConnectedDrive package, putting it in line with its sedan counterpart. As we mentioned before, expect these additions to be included in the 4 Series Gran Coupe.

BMW 4 Series LCI rear

With the 3 Series LCI (BMW's term for facelift) ushering new engines in the lineup, the 4 Series will also benefit from the changes. These include new four and six cylinder turbocharged gas engines and the four cylinder turbodiesel gets a mild power boost. It is likely that nomenclature will also change with the 428i becoming the 430i and the 435i being renamed to 440i.

BMW 4 Series LCI front

The 4 Series LCI is expected to be revealed later this year.