Milford, GM Proving Ground

A fire chief says a tank containing byproducts from oil drilling operations exploded and caught fire near the General Motors ...
So GM has added a 3.6 mile section of track to its Milford Proving Ground facility in Michigan, a section which directly mimics the (in)famous North Loop, with 20 turns and 98 feet of elevation ...
The Livingston County Health Department says at this time, there is no indication that this event poses a risk to human ...