The Perks Of Winter
While icebergs could take over a thousand years to form and another three thousand years to melt, black ice in a really cold winter climate can form in just a few hours. In this case, this block of ice must have fully formed around the jeep overnight. Surprisingly, it still held on strong even after the car was removed, resulting in a fascinating structure.
Also, considering the melting point of ice is about 0° Celsius, that ice might remain in shape for a few more hours at that temperature. While it might appear beautiful, ice is a large contributor to road accidents during winter.