The number of ICE cars I get stuck behind from time to time that just REEK is amazing. I’m in a decently well off area too.
Some putting off soot clouds, white smoke, nothing visible but clearly not doing complete combustion. Sometimes I wonder if half the cylinders are even working.
I’ve heard one car like that is the equivalent of a surprisingly large number of modern ICE cars is in good shape.
I love EVs. I’ve had one for 5 years now, and I’m glad they help. But I think the “are new EVs worse than new ICE” discussions so often miss a fact.
The pollution from ICE isn’t just from very modern well tuned vehicles, things vary wildly. But all EVs use the same power supply (assuming local grid only), so no individual vehicles put off 10x the pollution per kWh.
Even modern cars pollute a lot (especially in winter) because you need a certain temperature for the cats to start working. On short city trips it happens frequently that you never reach proper operating temperatures.
I'd say that putting off sooth clouds is a way to sequester carbon (which obviously failed to burn). Such over-enriched fuel mixes must generate much more CO though, and I wonder if those who "tune" their cars like so take care about the catalytic converter :(
Many car enthusiasts remove the catalytic converter for a combination of additional power and/or better sound. It has a massive impact on emissions and what you might be smelling is hydrogen sulfide which is normally converted to sulfur dioxide which is orderless.
I should note the power increase may not have a major impact on newer cars where the cat has been optimized to reduce it's negative power impact.
Infact a popular tuner company, APR, that provides flashes tested the recent Volkswagen GTI and R generation with their most common tune and determined that with their tune removing the cat had a nominal impact.
*Basically they can bring the cars power as high as the OEM internals can handle reliably while keeping the cat. There are cars where it still has some impact and of course, different from power ,"straight piping" a car can offer a subjective sound change.
tragically, because of efficiency standards, modern engines are known to burn oil .
Otherwise you may be smelling cars who have had the cats stolen.
Besides the crap they pump into the air, they also excrete gunk onto the road. It’s so primitive.
Speaking of smells....
One good thing about driving an EV is that weird oil or hot coolant smells are from someone else's car (and not a problem with your car)
(although yes technically many EVs have coolant loops)