California gasoline tax pisses me off more because it's higher than anywhere else and the money seemingly goes nowhere.
The rules mostly penalise the poor (and often unfairly).
You are severely underestimating how hard "done right" is.
I'm from New Zealand and the yearly car checkup is burdensome. About $75 and an hour wasted minimum to get car checked.
However the workshop profits come from fixing faults so their economic incentive is to find faults.
It costs you way more time if something needs fixing (parts delays, getting car and from workshop, etc.)
Our warrant of fitness regulations are ostensibly for safety (yours and others). However the jobsworth wonks have zero incentive to balance the risks versus the costs. The rules get stricter every year for goals that have no measurable outcome.
Many of the safety regulations are sensible, but many are just bullshit.
If you're talking about black smoke out of the exhaust, no it doesn't help reliability. If you just mean tuning to optimize not for emissions, yeah it can help if you know exactly what you're doing or screw it up if you don't, either way you'll only find out later. Doesn't seem to matter because professionals already survive without messing with their trucks.
idk who downvoted you, that's not appropriate, so +1'd you to avoid comment death