Emission Comparison: Prius / HS250h / Insight / Civic Hybrid / Jetta (Gas+TDI) / WRX STI

How about a chart that has that has a "regular" car like a Ford Taurus or a Chevy Malibu or similar compared to these various hybrids? I'm curious if there is a big difference.

 

I was just wondering if a "normal" mid-sized sedan (V6) was much worse than the smaller cars you had on your bar graphs.

I'm also curious why the Volt's carbon monoxide grams/mile was so high compared to the others in post 21 (assuming engine is even running).

 

Would you have the CO standard handy?

That is an exceptionally bad CO result and the others aren't too good either. It is as if someone in GM decided play a practical joke:

"Ok, here is your d*mn EV but the engine exhaust will kill ya'."
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Seriously, this needs to be shared with the 'automotive press.'

Bob Wilson

 

I love my Prius even more now.

 

Just another data point showing what a bad choice of engine gm made. I wonder what the pollution and fe would be if they shoe horned the 1.8L prius engine in there? In a serial hybrid which the volt is most of the time you would think you could pick a power range that polluted less than a normal car, yet they pump out more than the cruize and Malibu.

 

to be fair, the WRX was designed with very little thought to emmisions, it's purely a boy-racer car. I'd be interested in seeing a comparison of a PZEV outback with other green cars, since it's being marketed as a better green alternative to hybrids. (you know, no evil batteries fouling the environment!)

 

And just think, the central plant providing the EV miles is *worse*

Your graphs are very entertaining, but can we have CO split off into its own box ? All the other emissions appear homogenized because of the high CO values, even though substantial differences exist between engines.

 

Interesting......its says it is asking GM about the high CO as it might be related to a cold start issue.

 

I used the CARB STD numbers for the Volt to color in the appropriate CARB *LEV box for each pollutant. The Volt is not that far away from dropping into diesel territory, aka federal BIN II tier 5 -- the lowest allowed in CA.

Addendum: I changed the CO box from 120k to 50k miles. Incidentally, I do not understand how the HCHO of 0.011 g/mile result did not drop the Volt into LEV class.

 

Re: Emission Comparison: Prius / HS250h / Insight / Civic Hybrid / Jetta (Gas+TDI) / WRX STIH

Gasoline is around 250x more volatile than diesel. So they may not even have bothered testing the TDI. But I would expect the evaporative emissions to be quite low for it.

 

Kudos to Dennis for navigating the CARB website. Uggh.
However, I did find this tidbit that might interest some people here -- the Prius plug-in