More info here on this modified 1964 Cadillac Sedan for sale. Has a “built” 454 cu. in. for $11,500.

I stopped for this one because it’s a coupe, not sure I’ve noticed one before although wiki says 138,750 were sold this year. This one is sporting real wire wheels just like the ones I found on a contemporary Seville.  Powered by a Cadillac (not GM) 425 cu. in. V8 making 180 hp (or 185 with fuel injection). 

Another of Larry Smith’s collector cars for sale. Asking $17,500 for this very handsome front drive Caddy. 472 cu. in. V8 giving a torquey 375 hp. One of GM’s best designs.