I have a lot of info on the Can Am. Unfortunately, I'm typing this from work, and none of it is here. I have a book I threw together that contains a lot of articles, pictures, etc. But here's some stuff from off the top of my head.
The cars were given engine and suspension mods at the plant and were sent to Motortown Corporation for the scoop, spoilers, decaling, etc. The decision to scrap production was made due to the spoiler issue and the fact that the '78 model year was approaching (if you recall, it was a total redesign).
Two motors were available...for high-altitude and California cars, the Olds 403, and for the rest of us, the "T/A 6.6" 400, the W72 motor. W72 was a production code for an upgrade of the L78 400cid motor, which gave it a more aggressive cam, 350 heads to boost compression, etc. Most came with buckets and console, but I've seen several pictures with column shift and bench seats. Even one with buckets and console delete. The most common color was Firethorn Red for the interior, but I've seen most colors available except for green - and I don't think I want to...lol. The exterior was available only in Cameo White. The interior was essentially stock Lemans, but did have the Grand Prix dash. Again, it was available with all options or none, and I've seen several of each type.
I've even been lucky enough to drive one, as I was looking to purchase one from a man up in the Orlando area. Here's some pictures of it...he owns 4.
