It's been almost a year since we last wrote about the BMW i8 being winter-tested and here it is again -- this time in production prototype form -- doing donuts (!) in the snow. This plug-in gasoline electric hybrid vehicle started life as the Vision EfficientDynamics, promising sub five-second 0 - 60mph times while still achieving an impressive 87mpg (2.7 liters per 100km). We last saw the i8 concept at the Frankfurt Motor Show but the sporty coupé with the funky gullwing-like doors isn't expected in BMW showrooms until sometime in 2014. So for now just sit back, relax and check out the video above.