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Here
is an aerial shot of the old Studebaker Test Track in New
Carlisle, Indiana, about 12 miles east of South Bend. You can
still make out the trees next to the track that spell out the word
"Studebaker." It is now known as the Bosch Proving Grounds.
Here's a Wikipedia
history of the track. The track was repaved in 2007 according
to this story.
