BMW i8 breaks down during testing on the Nürburgring

BMW was testing with this i8 on this footage from Nurburgring and at one point the car rolled by really slowly and pulled over at the side of the track, seemingly broken down. There were most likely some problem with the brakes, since the driver was constantly using the brake pedal while being stationary. After about 15 minutes he drove off really slowly, hinting that it wasn’t a major problem. This just shows again that all the development work manufacturers put into their cars isn’t for nothing!