I think you'd laugh out loud if you ever went to a Toyota automotive plant in Japan, and then went to the equivalent Korean automotive plant in South Korea. This is if you could be a fly on the wall, at least in the Korean plant. Because when it is determined that visitors are coming to a Korean automotive location, there are a big announcements made down through the chain of command, and everyone is told to stay in their areas, stay at your desk if you have one, hide vehicle carnage, clear the repair center, don't stop the line for problems, and to not look at the man behind the curtain. It would be a laughable joke if it wasn't serious. And it gets worse down the line to the tier 1, 2, 3 vendors.
At a Toyota plant, you can walk through and see the real goings on. You might see some problems, you might see some arguments, but you won't see fake crap. Been both places. Done that as a design engineer, so I got to see all the nitty gritty. The Japanese engineers are the Navy Seals of automotive. The Korean engineers are the ones that couldn't cut it in the Coast Guard. The difference was astounding.
I'll take the lowest rated Sumitomo over the highest rated Kumho, simply due to the bad taste left in my mouth having worked for Hyundai-Kia. Course I'd take a Michelin over either, as far as tires go.
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View my fuel log 2020 Mirage ES 1.2 manual: 42.5 mpg (US) ... 18.1 km/L ... 5.5 L/100 km ... 51.0 mpg (Imp)