The real costs of a slick ride

I'm not good at keeping track of the smaller parts, but I paid $3500 for my Barracuda. The engine had already been rebuilt, headliner and carpet installed by the previous owner. I put over $4000 into paint and body, plus probably another $2000 or so into other parts such as emblems, wheels and tires, etc. So I'm somewhere around $9500 into it, and still need seat foam and covers. Luckily, my insurance co covers it for $12,500.