Every automaker in the world that develops and builds its own products rather than just assemble rebadged vehicles has some sort of proving ground where it evaluates its future models. In the case of General Motors, that property is the world’s first dedicated automotive testing facility, which is among the largest and most comprehensive of such facilities in the global automotive industry. We can only imagine how difficult it is to get behind the walls of the Milford Proving Ground but a new article from The Detroit Free Press opens the doors to GM’s product development and durability testing center.
The secrecy of that place isn’t just a myth, though. Most General Motors employees have never been there and will never be. This is the site where every new GM product – be it global or only for North America – is being tested and pushed to its limits before it is approved for production. This is where the Chevrolet Corvette C8 was secretly developed and back in December 2021, even a Ford Mustang Mach-E was spotted there leaving the facility. The site, located about 45 miles northwest of Detroit, opened its doors nearly a century ago and currently has a track that replicates sections of the Nurburgring.
