A next generation BMW 5-Series plug-in hybrid prototype was spied testing at the Nurburgring recently.

As posted on InsideEVs, the next 5-Series is expected to be revealed officially next year and go on sale by 2017 ealry in the year.

What the powertrain will consist of is not cerain, but it may be a four or six cylinder mated to an electrc mtors

Range could be under 20 miles on the EPA cycle.