View Single Post
Old 08-06-2019, 06:42 PM   #34 (permalink)
Snax
Master EcoModder
 
Join Date: Dec 2008
Location: Eugene, OR, USA
Posts: 382

Lord Vader - '15 BMW i3 REx
90 day: 35.06 mpg (US)
Thanks: 90
Thanked 170 Times in 126 Posts
Quote:
Originally Posted by RedDevil View Post
Don't forget it is designed by the team that built the Stella solar racer . .

If they claim 400 MPGe then don't just assume they lie. Instead appreciate that an economy race winning team knows quite a lot about calculating MPGe.
I don't want to discount their efforts at all. I think they are trying to build a noteworthy car with considerable promise.

I think, as I illustrated however, that the math suggests a lack of credibility on the MPGe claim without fudging other factors. Nobody is going to get 400 MPGe out of one of these cars without that fudge factor (and I will happily admit being wrong if they do). Rolling resistance alone is likely to make that an exceptionally lofty goal.

I will suggest that the Lightyear could potentially be the most stellar production highway performer to ever hit the road. They have certainly devoted plenty of good design to that end.
__________________
2015 BMW i3 REx
2011 Ford Flex SEL AWD
  Reply With Quote
The Following User Says Thank You to Snax For This Useful Post:
aerohead (08-07-2019)