Mercedes says 0.20 Cd for EQS electric sedan is record best for a production car

[Vekke]

Finally EQS Arrived to mb Dusseldorf shop. Made a video of the aero tweaks in the car https://youtu.be/Y7xW5wdVteU

Measurements from pictures were pretty accurate.

[MetroMPG]

Thanks for that walk-around video, Vekke.

[aerohead]

Originally Posted by Cd

This car has a .20 cD.
So the Mercedes matches it ( not counting the frontal area of course ! )

According to Elliott G. Reid's research at Stanford, simply adding plan-taper to the Abarth's body would give it a shot at Cd 0.168 ( 2006 Daihatsu UFE-III ).

[freebeard]

Increase the height to accommodate four occupants and you'd have the Volkhart-Sagitta V2.

[aerohead]

I compared the bar-graph of the three cars and a few others ( length/ square-root of frontal area ):
* 3.2923 for EQS @ Cd 0.20
* 3.2532 for Lucid @ Cd 0.20
* 3.2572 for Plaid @ Cd 0.208
* 3.3243 for Lightyear One @ Cd 0.20
* 3.36612 for LOREMO @ Cd 0.20
* 3.1069 for EV1 @ Cd 0.197
* 3.0427 for VW L1 @ Cd 0.195
* 3.1318 for Ultralite @ Cd 0.192

[alexshock]

Originally Posted by aerohead

I compared the bar-graph of the three cars and a few others ( length/ square-root of frontal area ):
* 3.2923 for EQS @ Cd 0.20
* 3.2532 for Lucid @ Cd 0.20
* 3.2572 for Plaid @ Cd 0.208
* 3.3243 for Lightyear One @ Cd 0.20
* 3.36612 for LOREMO @ Cd 0.20
* 3.1069 for EV1 @ Cd 0.197
* 3.0427 for VW L1 @ Cd 0.195
* 3.1318 for Ultralite @ Cd 0.192

Looks like 0.20 is an absolute limit for a classic 5-seat car.

[aerohead]

Originally Posted by alexshock

Looks like 0.20 is an absolute limit for a classic 5-seat car.

*They look 'normal' enough that they probably won't scare older customers off.
* One thought about Cd though. The 1993 EV1 land speed record car had Cd 0.137 as raced.
* With active suspension and Fachsenfeld's extensible tail from 1935, any Cd 0.20 car might be coaxed down to sub- 0.14.
* Wolf Heinrich Hucho mentioned in 1986 that, we already had the technical feasibility for Cd 0.09.
* To fast-track electrification of transportation, these lower highway Cds would really help extending battery range and market penetration.

[aerohead]

Mercedes provides a multi-view technical drawing of the EQS. I printed it out and did some contour comparisons.
Scott Evans, of MOTOR TREND had commented that, the EQS was ' aimed squarely at the Tesla Model S in size and range.'
On the light table, the EQS rear roofline was a close match to the:
Tesla Model S
Tesla Model X
Tesla Model Y
Tesla Model 3
Porsche Panamera
1999 GM Precept concept
1934 Auto Union Type-52, by Dr. Erwin Komenda
1922 Wolfgang Klemperer, basic half-body
What's old is new again.
Don't let the past pass you by!

[aerostealth]

For Phil Knox
https://youtu.be/Pt_c3gaO32g

https://www.youtube.com/watch?v=Pt_c3gaO32g

A Mercedes Cd = 0.18 car capable of 6 miles per kWh or 182 mpg-e.

[aerohead]

Great! M-B has caught up with itself from 1997, and they're not ashamed this time.