A new report from a German auto magazine, known for having an ear on the happenings behind the scenes at Daimler, Auto Motor Und Sport, says the company's Mercedes-Benz brand intends to bump the B-Class Electric Drive's range up to 310 miles (500 km), while also removing the Tesla drivetrain from the equation, and instead opting to build it in house for the next generation.
Mercedes-Benz B-Class Electric Drive interior
Today's B-Class ED gets 104 miles of range on the US EPA cycle (from $41,450 +dst); although we should note it is listed officially at 87 miles due to the initial model year offering having an "optional range" package (details) that provided full access to the battery's abilities, and opened up a further 17 miles of range - an option that is now standard.
To be fair, this new 500 km/310 mile bogey that Auto Motor Und Sport is reporting is most definitely on the European NEDC scale - which is far more lenient than the EPA.
The current B-Class Electric Drive (with extended range added in) is touted at 230 km (143 miles) by the company in Europe; so in this case - a 500 km/310 mile projection for the next generation of B-Class ED would translate to an apples-to-apples comparison of about ~360 km/225 miles. Still pretty decent.
This new report is also backed up by an earlier statement from Thomas Weber (who heads up R&D for Mercedes passenger vehicle division), who said last year that "the range of the B-Class Electric Drive could increase to 185 or 250 miles" in under 5 years time.