Quote:
Originally Posted by Snax
So I just bought a Kia EV6, and I am fascinated by the discrepancy in claimed drag coefficients of these two cars.
Their profiles are very similar, but Tesla claims 0.22Cd for the Model Y, while Kia claims what I feel is a more believable 0.28 for the EV6. So I am wondering if Tesla simply appears to be lying, or if there are some obvious improvements to aerodynamics that Kia left on the table that Tesla has not. I can't see much that would account for that much difference.
Thoughts?
https://photos.app.goo.gl/9WFpu8oatV7kWTEy7 |
Remember that 68% of fuel is used accelerating weight in city driving,
vs 14% for Aerodynamic Drag.
And that 98% of driving worldwide happens in cities.
"...For every 100-kg reduction, the
combined city/highway fuel consumption could decrease by about 0.4 L/100 km for cars..." (not; just city...)
https://ecomodder.com/forum/showthre...ban-41665.html
So it's possible that some underfloor covers or something may be omitted in one make, as doing so actually drops the average...
ie: there is a fine line between weight adding aero and leaving it off as far as overall fuel consumption goes.
Such is the physics!
