> Gassers make just as much particulate, but it's of the most hazardous type, which means their particulate emissions are actually worse than diesel.
That's only true of direct injected gas engines.
Who told you that? That's bullshit. The only way in which DI gassers are worse than other gassers is that they foul their intake valves which have to be expensively cleaned, sometimes including head removal.
Gasoline also has to be refined more than diesel
This isn't true anymore. Diesel is a highly refined product now also. Clean emissions requires clean and homogeneous input fuel and that means more processing.
Not only is it still true (it still takes less energy to make diesel, it just takes more than it used to) but guess what? Automakers are now asking fuel companies to make higher-octane fuels, over 100 on the scale we use in the USA. That's what they need to make cleaner-burning gasoline engines. So gasoline is actually about to get more expensive, both in real dollars and in energy cost.
That car is a rolling smog bank and you are trying to talk about how your input fuel was renewable? Seriously, have you looked at the emissions standards it was required to conform?
That's irrelevant; mine is running nice and clean. It only smokes when you pin it, which even brand new diesels do. And since it doesn't have a catalyst, it puts out nice big fat soot particles that can be trivially swept out of your lungs by your cilia.
They were a joke in the US and a double joke in Europe. It's far filthier than its contemporary gas cars and really bad compares to any modern car of any sort.
And yet, far superior to anything else in the class sold in 1982.