Out of Spec: Rivian R1T Highway Range Test

[SASSquatch]

Color me impressed. ~290 miles in those beefy ass AT tires at 70(ish) MPH AND climate control is just damn impressive. Yes, it's a big battery, but the R1T is 7K lbs and about as aerodynamic as a block of cheese.

I would love to see what it would do on 22's with less rolling resistance (my configuration). My guess is that the ride comfort in Conserve Stiff will be worse since the AT tires probably soak up some of the bumps and vibration.

I originally had a max pack because I worried about range at highway speeds (and/or cold weather). I think if you aren't planning to tow the Large pack is the absolute sweet spot for daily driving and road trips.

Sponsored

 

[E.S.]

...Yes, it's a big battery, but the R1T is 7K lbs and about as aerodynamic as a block of cheese ...

What I want to know is, what part of the world you live in that a block of cheese (and what cheese is it) has any kind of aerodynamics?

I gotta have THAT cheese!

 

[manitou202]

I am not sure how you did your test, but during my "regular" drive between 70-75 mph that is ~32 miles, with tailwind I get 3.2-3.3 mi/kWh, and with headwinds, I get 2.7-2.8 mi/kWh.

Regardless, I think that most people are now getting used to the idea of having a usable range in their vehicles between 200 to 250 miles per charge to 80%, or 85% with R1T. That is a sign of the growing acceptance of EVs in general. I think R1T did well in this range test, but I think that charging speed is practically more important than the ultimate range, at least for daily use of the vehicles.

I'm referring to the E-tron SUV not the E-tron GT sedan.

The numbers I'm quoting above are based on the Inside EVs 70mph range test, not my own testing.

https://insideevs.com/reviews/443791/ev-range-test-results/

 

[Rudedog]

I really just need/want the road tires, don’t need the AT. But really prefer the 20” wheels over the 21s. If I get the 20s that Rivian offers, will there be good options for 20” road tires after going through the AT tires on the 20” wheels?
Or, since it’s an $1800 up charge, does it make more sense to just get the 21s with the road tires and buy new wheels in the future?

 

[lostpacket]

Anyone know what the range impact might be for a pink flamingo duct taped to the hood?

I am hoping the wind resistance would be offset by the coolness factor for approximately the same overall range.

 

[camaroz1985]

Excellent test and excellent result.

Made me go back and crunch some numbers (with help from ABRP). I now think that for any of my monthly or our normal yearly trips, the difference between the large and max pack isn't worth the cost. I do worry a little about degradation over 8-10 years (that's how long I plan to keep it). I would be charging to the the daily 70% limit every day, with trips that need the 85% extended limit once or twice a month , and trips that need 100% once or twice a year. The only time I would be charging on fast chargers is during those trips. I don't think that should be too bad for battery degradation.

I am going to hold off on changing until I see the result's of Kyle's test with the enclosed car trailer he posted pictures of earlier, but I think I may be switching to the large pack, and that isn't something I ever thought I would be doing. It would be nice to save the some money (though I may offset some of that by switching to the Adventure package from Explore), and possibly get my truck a couple months sooner.

 

[twinprice]

Using these numbers, what would you put in ABRP for their reference consumption? If I take 290mi using a 135kw pack, I get 2.15 mi/kwh but that is at 70MPH and ABRP asks for the reference consumption at 65 MPH.

What would you put in ABRP?

 

[r1t_kev]

Thank you for this distilled version. Saved me from another OOS video that is twice as long as it needs to be.

Sorry to be the whiner here as the nerd in me appreciates the effort, but the bloviating and need for editing seem to overtake the actual facts presented.

Man, if you don't want bloviating, you've come to the wrong forum!

 

[Boudro]

Using these numbers, what would you put in ABRP for their reference consumption? If I take 290mi using a 135kw pack, I get 2.15 mi/kwh but that is at 70MPH and ABRP asks for the reference consumption at 65 MPH.

What would you put in ABRP?

I used 2.33 in ABRP as he used 124KW not all 135KW is usable.

 

[SASSquatch]

What I want to know is, what part of the world you live in that a block of cheese (and what cheese is it) has any kind of aerodynamics?

I gotta have THAT cheese!
?

Cheeeeeeeeeese!

If you haven't used a frozen block of cheese as a football in the middle of July then you ain't doing life right.

 

[SASSquatch]

I really just need/want the road tires, don’t need the AT. But really prefer the 20” wheels over the 21s. If I get the 20s that Rivian offers, will there be good options for 20” road tires after going through the AT tires on the 20” wheels?
Or, since it’s an $1800 up charge, does it make more sense to just get the 21s with the road tires and buy new wheels in the future?

Pay the man! You've answered your own question.

Get the 21"s for "free" and then spend the $1800 towards a set of 20's with tires that you like and you can change them out based on season/use case.

 

[SeaGeo]

Using these numbers, what would you put in ABRP for their reference consumption? If I take 290mi using a 135kw pack, I get 2.15 mi/kwh but that is at 70MPH and ABRP asks for the reference consumption at 65 MPH.

What would you put in ABRP?

I used 2.33 in ABRP as he used 124KW not all 135KW is usable.

So, I think you need to scale it up for efficiency at 65mph, and down for adjusting from a 125kwh pack to the 135kwh pack. I'm skipping the assumption of 125kwh below.

So 290miles/135kwh*(70^2)/(65^2) = 2.49 mi/kwh. If you base it off the 70mph test it'd be 2.15 mi/kwh. I'd probably split the difference and use 2.3 or 2.4 for now.

 

[Cactus]

Drag is a function of the square of velocity. Assuming all of your energy goes to drag (it doesnt) you would conservatively expect a out 220 miles of range at 80 on the 20s assuming 290 miles at 70mph.

70 to 80 would be about a 24% reduction.

70 to 65 would be a 15% increase (or less).

Yep. Besides variable headwinds it's all in the equation.
Drag= Cd*density of air*(velocity squared/2)*cross sectional Area. Cross sectional area is much bigger on a truck than a Taycan, but neither can escape the square of velocity which is the biggest hit when going faster.

 

[camaroz1985]

I used 2.33 in ABRP as he used 124KW not all 135KW is usable.

I did the same. Figured it gave a little extra buffer with the difference in speed.

 

[goldburger]

Pay the man! You've answered your own question.

Get the 21"s for "free" and then spend the $1800 towards a set of 20's with tires that you like and you can change them out based on season/use case.

Is this possible? How can one figure out range? Are there any concerns to be aware of? I have been back and forth a million times on wheel size. I will never off road the most will be some fire roads and the occasional trail here and there when camping.

Sponsored