GM Proving Ground in Milford is home to secret plans for future
GM was the first automaker to have ground dedicated to test cars when it opened the Milford Proving Ground nearly 100 years ago. Here's a look inside.
Source: hometownlife.com
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GM was the first automaker to have ground dedicated to test cars when it opened the Milford Proving Ground nearly 100 years ago. Here's a look inside.