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Gravity EPA docs are here.

johnse said:
Why does that show an issue date of 04/23/2025 if it's been holding things up?
Click to expand...
Maybe something else was holding up production or they might not have wanted to start proper production until they got the certification. Can only imagine how well it would go down if inventory was piling up and not able to move due to a certification hold up.

Anyone’s guess really.
 
johnse said:
Why does that show an issue date of 04/23/2025 if it's been holding things up?
Click to expand...
The document specifically says that "the manufacturer shall obtain the approval of the California Air Resource Board...". Considering prior speculation has been around not yet having received CARB approval, this document doesn't seem to change anything. At least, not for California and the other states that have signed on the California's tighter requirements.
 
I just received unofficial word from my SA that the car will be ready for delivery very soon. They're aware of specific date, but can't release details until they receive official word from corporate.
 
Elfin said:
That's a much better test. I can quibble a little with the results though. First they're testing an ICE vehicle which is much more affected by wheel/tire weight, they have a difference of 54lb vs. 40lbs from biggest to smallest. It's too bad they didn't measure highway effficiency (which should not be be affected by wheel weight.) Second the tire performance is very different even though they're all the same model tire.
"We say that the tires were nearly the same because the 15-, 16-, and 17-inchers have a lower speed rating (V, or a top speed up to 149 mph) than the 18- and 19-inch tires’ W-rating (up to 168 mph)."
The V rated tires got 0.83g,.85g,0.85g and 23.3mpg,22.9mph, 22.8mpg
The W rated tire got 0.89g,0.88g and 21.9mpg, 21.1mpg
It seems that there's a significant difference in the tire compound and the stickier tires get worse efficiency.

Maybe we can compromise and agree that larger diameter wheels are usually less efficient primarily because of the design choices made for larger diameter tires?
Click to expand...
Continuing to beat this dead horse. LOL. (I was closing tabs and saw the table again)
The tires and wheels are also different widths in their test!
195 205 225 225 235
6" 7.5" 8" 8" 8.5"
 
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