'90s diesels can arguably be less polluting than modern “clean” diesels, depending on which pollutants you care about and if you’re running bio-diesel instead of dino-diesel. (Old diesels can run B100, which is carbon-neutral and emits zero SOx, but it’ll destroy the high-pressure fuel pump on a modern common-rail diesel.)
Depends on how far back you go. Cars from the late 90s and early 2000s are still pretty clean.
Also, a lot of cars can be converted to electric with some knowhow and welding. This could become a cottage industry.
In California, all cars newer than 1975 must pass a smog test.
Converting ICE vehicles to electric vehicles is a cottage industry. While looking for a mechanic recently I found two places that do it.
People power!
I remember watching a show on SPEED that was just one shop doing custom EV conversions.
Of course it was in Cali.
'90s diesels can arguably be less polluting than modern “clean” diesels, depending on which pollutants you care about and if you’re running bio-diesel instead of dino-diesel. (Old diesels can run B100, which is carbon-neutral and emits zero SOx, but it’ll destroy the high-pressure fuel pump on a modern common-rail diesel.)