CT has 18" base and 20" premium (AT) wheels I thought? Image from app below in tweet. Also this CT forum thread.
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Battery and range comparison chart.
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AlanSubie4Life
Efficiency Obsessed Member
Seems like three. 18” and two 20”. We have seen the premium 20” prominently.CT has 18" base and 20" premium (AT) wheels I thought? Image from app below in tweet. Also this CT forum thread.
Let’s hope these tests were with the 20” AT option which appears on the premium wheels. Perhaps a marginal AT but an AT.
The 18” and maybe the 20” base Pirelli Scorpion are presumably all season efficient street tires.
However; is hard to explain 293 on Cyberbeast without unpleasant implications.
The UDDS numbers from California are the key here. (I forgot about that alternate source!)
This is very bad if it holds up.
Summary: Cybertruck Dual is rated accurately at 290 miles, probably with street tires (if this all pans out). The street tires thing is very much up in the air but seems likely…
Rough Math is 0.7*(430*0.55+0.92*430*0.45)
If the scalar is 0.82 as predicted that is just nuts. (290*0.82/0.7 = 340)
If it ends up being on ATs then would not be quite so bad.
Not unsurprising though with a battery of only 123kWh though. Can’t fight physics.
All highly preliminary. Wait for final numbers. Though I think Beast UDDS California are final. Dual Motor UDDS
For reference Model 3 LR AWD (with bigger pack rated for 358 miles) gets something like 470 miles UDDS.
Rivian Dual Large AT: 459 miles
Rivian Dual Large 21” street: 520 miles
Rivian Dual Max: 600mi/560mi
All-terrain tires
• 301 mi for Cybertruck Tri-Motor AWD
• 318 mi for Cybertruck Dual-Motor AWD
All-season tires (not available yet)
• 320 mi for Cybertruck Tri-Motor AWD
• 340 mi for Cybertruck Dual-Motor AWD
Source: Tesla begins inviting customers to order $120K 'Foundation Series' Cybertrucks [Update]
AlanSubie4Life
Efficiency Obsessed Member
Very helpfully fills in the missing pieces. With all these iterations it gets confusing to me. But it's not complicated! We thought:
430mi UDDS (AT) => 340mi (AT). (Implied 0.82 scalar). (Actually I went back and forth on whether 430 was with AT or AS but looks like AT)
But actually:
430mi UDDS AT => 318mi AT. (Implies smaller 0.767 scalar)
So nothing really changes; we had already normalized to 0.7. I wasn't sure about the 430mi being with AT (it nearly certainly is), but the base 290mi "0.7" rating doesn't change.
Scalar derived by scaling up our prior 290 range: 318/290*0.7 = 0.767. This is more in line with other recent Tesla vehicles’ range inflation.
Ignoring highway result and extrapolating as Reddit thread did, these are all rough numbers using approximation that HWY result will be 92% of UDDS as done there, feel free to correct:
“Uniform 0.7 Range (Corrected)” (Also still estimated)
AT Tires:
123kWh CT Dual AT UDDS 430 miles
430mi*(0.55+0.92*0.45)*0.7 = 0.675*430mi
=> 290mi (using 0.7 scale). (Check: 0.767/0.7*290mi = 318mi)
131kWh Rivian Dual Large 20” AT UDDS 459mi
459mi*0.675
=> 310mi
City:
CT AT: 123kWh/(0.7*430mi) = 409Wh/mi
R1TDL AT: 131kWh/(0.7*459mi) = 408Wh/mi
------------
All Season Tires:
Cybertruck Dual Street 20" (All Season):
Working backwards for Cybertruck Dual AT to get the UDDS result for it, assuming same scalar (not necessarily true at all, the scalars can differ considerably based on tire...so it could be something like 0.74...but probably close) => 340mi*0.7/0.767 = 310mi (normalized to 0.7)
UDDS: 310mi/0.675 = 459mi
So now we go forward for consistency:
123kWh CT Dual AS UDDS 459 miles. (multiply by 0.675 to get est. EPA)
=> 310mi (using 0.7 scale ). (Unnecessary check: 0.767/0.7*310 = 340mi)
131kWh Rivian Dual Large 21” street UDDS 520mi
=> 351mi (0.7 scale). (It's actually a smidge lower; actual normalized range is in the EPA docs, but this is just an estimate using 0.675 factor.)
City:
CT AS: 123kWh/(0.7*459mi = 382Wh/mi
R1TDL AS: 131kWh/(0.7*520mi) = 360Wh/mi
Summary:
All terrain efficiency similar.
With street all season tires, the Cybertruck lags more.
One conclusion might be that the ATs used on Cybertruck are pretty optimized (or compromised), and that makes up for overall slightly lower efficiency. They didn't look very rugged or heavy duty (like a KO2) to me in person, but have no comparison to make to Rivian.
The other possibility: Rivian loads their AT tire test with 500 more pounds (see EPA doc). So that's going to make it look worse than it is, a bit, due to more rolling resistance. That's probably the main reason for this weirdness. Seems like 30Wh/mi difference is more reasonable due to a tire change.
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