The members of one of the many model-specific forums sprouting on the  internet these days, have purportedly gained access to a snippet from an  official BMW document listing a number of details including the  production dates and model trims for the upcoming 4-Series range, which  was teased through a coupe concept at last month's Detroit Motor Show.
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
BMW 4-Series Coupe
For starters, the list states that the F32, which is BMW's code-name for  the coupe, will be offered at launch in four flavors – the 428i and  428xi (all-wheel drive) motivated by a 2.0-liter turbocharged inline  four (likely delivering 240-horses), and the 435i and 435xi featuring a  3.0-liter turbocharged inline-six (with 300hp unless BMW uses its more  potent 315hp unit).
Series production of the 2013 model Coupe will begin this July at BMW's  Munich factory and will end in June of 2014, when the new model year  kicks in.
The Convertible version codenamed F33 will be offered with the same two  engines in the 428i and 435i, but only all with rear-wheel drive.  Production starts at the BMW's Regensburg factory in November of 2013  and ends in June next year.
In both cases, the last date refers to the end of production for the  specific MY (Model Year), not the series, which at that point, will  continue with a new model year that may or may not bring some updates.
Articles Source : Carscoop








