At the moment, the BMW 3 Series range has three body styles, six if you include the 4 Series siblings. By the end of the decade however, that number may be trimmed down to five. The style that will be dropped from the range? It might be the 3 Series Gran Turismo that's on its way to the chopping block.
Yes, the quirky liftback 3 Series is reportedly going to be discontinued by 2020. According to the folks of BMWBlog, it will be among the last models to be made with the current 3 Series chassis. As an all-new 3 Series nears its reveal date, the entire range will be totally new except for the 3 Series GT. The seventh-generation 3 Series is slated to make its first appearance sometime later this year, likely as a 2019 model. It has been mentioned that the car's sales were a factor in its possible discontinuation, citing that figures never reached BMW's expectations.
The BMW 3 Series Gran Turismo was first launched in 2013, a year after the sedan made its debut. It rides on an extended wheelbase as its floorpan is based on the China-only 3 Series long-wheelbase sedan. BMW had aimed to blend fastback styling with the large cargo capacity of a station wagon. It is also taller, longer, and wider than the 3 Series sedan, making it one of the more unique products of BMW.
On the flipside, the 4 Series Gran Coupe will live to see another generation, at least according to the source. The current-generation 4 Series Gran Coupe is said to stop production by 2020 to make way for the all-new model. Given BMW's move to platform sharing, the all-new model may well be based on the upcoming next-gen 3 Series. It has also been said that the next-generation 4 Series Gran Coupe will form the basis of their next all-electric car, likely to be dubbed the i4.
Source: BMW Blog