BMW 4 Series Coupe teased undergoing final stages of testing

BMW has given us the first official glimpse of the upcoming 4 Series Coupe ahead of its global debut. The two-door version of the 3 Series sedan is likely to be revealed in June, but ahead of that, the Bavarian carmaker has dropped an official teaser video showcasing the prototype undergoing its final rounds of testing. 

• Shown in the top-spec M440i guise
• Expected to break cover in June

Apart from the 4 Series Coupe, BMW could also give us the 4 Series Convertible. Or it will be revealed separately at a later date. The line-up will then be joined by a four-door version called the 4 Series Gran Coupe. Meanwhile, the M model will take about a years' time to hit the streets and race tracks.  And for the first time joining the 4 Series family will be an all-electric i4 as well which could arrive by 2022.