luke m
You ask why LT are made the way they used to - simple answer - must meet emission stds that keep getting tougher. I'm certain your country has them too in the US we have OHSA basically set std for work place - air quality, then we have CARB (California Air Resources board) & EPA ( Environmental Protective Agency). More and more through the ITA, BITA, JIVA, etc they are working closer to get stds common throughout developed countries - China has their own drummer boy with not so good drums.