I have a few questions pertaining to what I see aroundDetroit, maybe you can help.
1. The first spot I ask about is located @ 42°50'40" N 83°04'37'W, is this Ford or GMproving grounds? This one has a 5-mile oval.
2. Or maybe this? Is this Ford or GM Proving Grounds? 42°34'27" N 83°42'03" W. This one has a 4.5 mile circle
3. I think this one is Chryslers, it's right next to I-94. 42°15'57" N 84°04'44" W. Am I right? This one has a 4.65 mileoval.