We’ve yet to see the next 5-Series, yet the M Division has been doing extensive testing for quite some time on the all-new M5.

Its launch is expected at the end of 2017, so until it will be complete, enthusiasts have to settle with videos like this one, which reveal prototypes driven hard on the Nurburgring.

Believed to adopt an evolutionary exterior design, the next generation BMW M5 will be instantly recognizable as part of the brand’s lineup, but in order to go up against the new Mercedes-AMG E63, it needs a lot of muscle, and this is said to come from a 4.4-liter twin-turbo V8 engine.

Rumor has it that the lump will push at least 600 horsepower to the all-wheel drive system through a 7-speed dual-clutch transmission, which won’t make it loose heritage, as it “has to drive like an M5 does today, but with better traction as well“, according to a BMW official.