These are spy shots with the least disguising so far of the upcoming coupe version of the new BMW 3-series – rumoured to be named the 4-series. On this prototype, we can very well make out the shape of the upcoming two-door coupe which should be larger than the 3 series. Or we can imagine it as a smaller version of the 6-series coupe. Speculation is that the new 4-series will feature both two-door and four-door sport coupe variants (as BMW has been done with the 6-series as well), to compete against the likes of the Audi A5 range, and that BMW may also introduce a cabriolet version too.
