Remembering back to my first (and only) Japanese car, a Nissan Sunny, it was only a year old when I took it on. It was cheap and reliable but, even in comparison to the Astra that replaced it, it was so tinny/plasticy. For example, the metal back bumper used to take a few knocks (mostly by others!) and being used to fixing this sort of thing, off it would come and into the vice in the workshop for "realignment" with some hefty tools. Then, one day, I realised that I was completely wasting my time; I hadn't realised that the metal was so thin and nasty, that I could easily reshape and straighten it on the car using just my bare hands! It was little stronger than baking foil!
That was fairly typical of that car.
I had a run of 3 Jap bikes, from Honda, Yamaha and Suzuki. I just accepted that bikes were only built to do a maximum of 20-30,000 miles or 4 or 5 years, sometimes not getting you to your destination, before being unviable to maintain. I moved to Triumph in 1995 and I kept that one for 19 years before selling it (with confidence) to a friend who plans on carrying on adding 12,000 miles a year to it, mostly commuting in and out of London!
I've never felt the need to buy another Jap bike or car since!