Growing up, my neighborhood could only be described as "Urban White Trash". (Ironic, as it's also where Alex Trebek is from. City and 'Hood!). The "Fixed to barely functioning" cars were across the street from me constantly, and there was more than one semi-truck parked on the street. (My Father's was one of them, often with a 50' Box Trailer attached.). I watch "Trailer Park Boys" and feel homesick in a lot of ways.
Despite watching Dad crawl around diesel engines almost all my life, I never did learn mechanics in any way, and almost failed autoshop when it was one of the times I electrocuted myself (And other mishaps.).
The place went downhill and almost respectable now, apparently... I blame the Mormons, things started getting better when they moved in.
Also around in my hometown are what are called... Something I can't say as I don't have First Nation's heritage and can't say ethnic jokes about them. But, yeah, their cars were in horrible condition, and one was infamous for being "Permanently parked" on a corner.