Congrats on the find and for going with the 5 speed!
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Originally Posted by Smurf
what appears to be a shotgun blast from the backseat into the sheetmetal (no idea!) it's not bad.
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Looks to me like the previous owner tried pound out a dent from the inside of the car.
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It currently gets 37MPG overall in town and light cruising.
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That's pretty impressive. I had no idea that the Grand Ams were capable of that.
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I realize the spoiler wing is useless, and possibly detracting from the aero. But I've thought of using it as a mount for a full Kamm or similar.
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A properly designed Kamm back would be ideal... but until you do that I would leave the rear wing on the car.
For a few years GM liked to put excessively rounded transitions on the trailing edge of their trunk lids. I remember reading an article about how adding a spoiler to that style of trunk lid reduces both drag and lift.
Good luck with the car! I'm looking forward to following the projects!