? Official EPA Range and MPGe Numbers for R1T & R1S

[LaunchGreen]

Regen braking doesn’t add any range to city driving. None

why do you say that?

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[Babbuino]

This the largest and heaviest EV out there. What do you expect?

Well be able to compare once other EV trucks come out

 

[LaunchGreen]

I will also say. Every car I have owned in the last decade has exceeded its EPA rating in real world driving. Guess it will depend a great deal on ones driving style

I drive like I'm on fire and for some reason mine never hit their EPA ratings. Stupid EPA.

 

[Autolycus]

Everyone should keep in mind that there are several factors that would cause the 20” AT option to be less efficient:

1. Rolling resistance differences due to the tire design, including rubber compound and tread pattern
2. Aerodynamic effect from the extra 1” of ride height
3. Aerodynamic effect of the different wheel — the 21” has aero inserts and looks to be a fairly aerodynamic design, but the 20” wheels look like they’ll have more drag
4. the extra sidewall on the 20” helps some, but obviously not enough to compensate for losses caused by 1-3

#1 could be addressed by switching to AS tires, including even the exact model that’s used for the 21” option but in the correct size for the 20” wheels.

 

[aw113sgte]

The range is fine, but I’m a bit disappointed in the overall efficiency. Sad to see Rivian at the bottom of the efficiency list.

I'm not. This is engineering. The vehicle shape cannot defeat physics.

 

[Hilbe]

The range is fine, but I’m a bit disappointed in the overall efficiency. Sad to see Rivian at the bottom of the efficiency list.

Watch it. People on the Rivian reddit don't like this critical thinking.

I have yet to see anyone rival Tesla in overall efficiency. I get there are many things that factor into it, but you look at the Rivian with a 135 KW pack - bigger than anything out there - and range isn't anything to brag about. I was really hoping they had optimized the heck out of their battery/motor tech and would have done a bit more with that big of a pack.

 

[Churrodecoco]

Well, just to make things a little more interesting, I spoke with CS today and they said there was no 2WD Conserve Mode

This makes sense. I think “extended range” mode should still kick in the other wheels if needed. I’d hate to compromise safety for range. Extended range mode should simply prioritize 2WD (Lower the hight, reduce accelerator power curve, etc).

 

[Autolycus]

Watch it. People on the Rivian reddit don't like this critical thinking.

I have yet to see anyone rival Tesla in overall efficiency. I get there are many things that factor into it, but you look at the Rivian with a 135 KW pack - bigger than anything out there - and range isn't anything to brag about. I was really hoping they had optimized the heck out of their battery/motor tech and would have done a bit more with that big of a pack.

They almost certainly HAVE optimized the heck out of their battery and motor tech. They’re having to overcome a MUCH less aerodynamic body than anything from Tesla. The aerodynamics are where Tesla excels the most, IMO. Their bodies are designed really well.

 

[Kmann1994]

Why are people comparing the eMPG of the Rivian to Tesla’s models and saying that Rivian’s battery/motor efficiency is to blame for the difference?

That makes zero sense. The R1T is bigger and heavier than any Tesla, has a completely different shape aerodynamically.

This is the same reason why a Toyota Camry is going to have a lot better MPG than a gasoline F-150.

Seems obvious to me, but a lot of people seem to be missing this.

 

[Hilbe]

They almost certainly HAVE optimized the heck out of their battery and motor tech. They’re having to overcome a MUCH less aerodynamic body than anything from Tesla. The aerodynamics are where Tesla excels the most, IMO. Their bodies are designed really well.

Part of me is expecting them to do what Tesla has done - continue to optimize via software. Get a software download to jump it to 330 miles. Tesla has done that many times which is pretty awesome.

 

[Churrodecoco]

The range is fine, but I’m a bit disappointed in the overall efficiency. Sad to see Rivian at the bottom of the efficiency list.

It’s an off road truck. What did you expect? Just wait for any competitor to actually release a comparable vehicle and then a fair assessment “list” can be discussed. i.e. Ford Explore, Ranger. Or RAM TRX. The F-150 and Hummer are not going to be in the same class either. Maybe the Cibertruck might be.

 

[Hilbe]

Why are people comparing the eMPG of the Rivian to Tesla’s models and saying that Rivian’s battery/motor efficiency is to blame for the difference?

That makes zero sense. The R1T is bigger and heavier than any Tesla, has a completely different shape aerodynamically.

This is the same reason why a Toyota Camry is going to have a lot better MPG than a gasoline F-150.

Seems obvious to me, but a lot of people seem to be missing this.

Nearest EV competitor is a Model X when looking at the R1S. Many pre-order folks considered both these cars. I have an X and am getting a R1S.

 

[SeaGeo]

Rivian is also using the 5 cycle test.
And it appears the nominal battery capacity is 144 kWh (400V * 360Ah)
Official classification is "Part time 4-Wheel Drive".
No voluntary reduction of range is listed.
https://www.fueleconomy.gov/feg/epadata/22data.zip

Awesome. Thanks!

I'm curious what the default usable is, and how they end up managing that for our "good behavior" (reading the tea leaves a bit there, i'm assuming it's based on managing degradation for each better pack).

Well, just to make things a little more interesting, I spoke with CS today and they said there was no 2WD Conserve Mode

well, apparently my CS rep cut through the delay the announcement of already announced 2WD and gave me the goods confirming the test was with AWD and 2WD is a conservation mode.

 

[TessP100D]

why do you say that?

because it doesn’t.

you drive to the store and back. Regen doesn’t add miles to your meter.

 

[LaunchGreen]

because it doesn’t.

you drive to the store and back. Regen doesn’t add miles to your meter.

Lol, well that's taking it very literally. You're driving in that example.

What if you were at the top of a mountain and never touched the accelerator and only braked on the way down? Would your range at the bottom be higher than if you didn't have regen braking?

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