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Gravity 30-40mph range/efficiency

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niceInBoston

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I'm intending this to be a complementary thread to the 75mph range thread. For folks like me that do a lot of driving at lower speeds (old New England cow paths, driving town-to-town, mostly flat, etc), I'm curious what folks are getting in efficiency during longer low/medium speed trips?

I have a Model X, and at current ~70F temps, I see a fair share of 200-250 Wh/mi (4.0-5.0 mi/kWH) trips with my all season 20" wheels, even with a bit of AC use (often just the front row.. rear AC uses a noticeable amount more). I assume Gravity would be close to that with the smaller (20/21") wheels, civilized acceleration, and no one in the rear rows, though haven't tested that yet in a test drive.

What are folks noticing for efficiency, for drives that don't include highways?
 
niceInBoston said:
I'm intending this to be a complementary thread to the 75mph range thread. For folks like me that do a lot of driving at lower speeds (old New England cow paths, driving town-to-town, mostly flat, etc), I'm curious what folks are getting in efficiency during longer low/medium speed trips?

I have a Model X, and at current ~70F temps, I see a fair share of 200-250 Wh/mi (4.0-5.0 mi/kWH) trips with my all season 20" wheels, even with a bit of AC use (often just the front row.. rear AC uses a noticeable amount more). I assume Gravity would be close to that with the smaller (20/21") wheels, civilized acceleration, and no one in the rear rows, though haven't tested that yet in a test drive.

What are folks noticing for efficiency, for drives that don't include highways?
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I do similar driving with our X and never get 4-5 mi/kWh. With Gravity, the rated range expects 3.30 mi/kWh, so I wouldn’t expect 4+.

We get about 2.85 mi/kWh in the X with that type of driving and close to 3 in the Gravity.

I use high regen on Gravity
 
I can get 3.5 miles/kWh 30-40 mph on 22/23s on my GDE, high regen. I am at 3.1 miles/kWh over 1500 miles, including higher speed driving
 
BiruBoy11 said:
I can get 3.5 miles/kWh 30-40 mph on 22/23s on my GDE, high regen. I am at 3.1 miles/kWh over 1500 miles, including higher speed driving
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Are you trying to get high efficiency? I can’t help but crush the go pedal every now and then and that crushes it. But it’s not that hard to stay above 3, to your point.

Our R1S is super inefficient even in the best of attempts. I get around 2.5 at best. Again, there’s no way my X is getting 4-5 unless you’re just driving down hill…

Not that this is ANY legit measure, but the charging rate (mi/hr) is identical at 11kW between our X and Gravity at 35-36. Our R1S limps at 23. This should have some implications on what actual efficiency is, but who knows.

I’ve been pleasantly surprised with Gravity and have zero fears because I can charge anywhere and it’s ABSURDLY fast charging at Tesla SCs and BP Pulse. EA is solid, but their chargers are like Fisher Price my first charger in terms of quality.
 
Ron_Burgundy said:
Are you trying to get high efficiency? I can’t help but crush the go pedal every now and then and that crushes it. But it’s not that hard to stay above 3, to your point.

Our R1S is super inefficient even in the best of attempts. I get around 2.5 at best. Again, there’s no way my X is getting 4-5 unless you’re just driving down hill…

Not that this is ANY legit measure, but the charging rate (mi/hr) is identical at 11kW between our X and Gravity at 35-36. Our R1S limps at 23. This should have some implications on what actual efficiency is, but who knows.

I’ve been pleasantly surprised with Gravity and have zero fears because I can charge anywhere and it’s ABSURDLY fast charging at Tesla SCs and BP Pulse. EA is solid, but their chargers are like Fisher Price my first charger in terms of quality.
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For whatever reason, I tend to get higher efficiency than most the way I drive, but I wouldn't say that I'm not an aggressive driver. My wife on the other hand, who is about as far from being an aggressive driver as you can be, gets a little under 4 miles/per kWh in her 2024 Model 3. I get over 5 miles/kWh driving her car. She uses the brake a lot despite being on high regen. I never use the brake and I don't tailgate so I generally don't have to worry about slamming on the brakes. To answer your question, I do value getting higher efficiency but not because I am worried about getting stranded somewhere. The ability of the Gravity to use superchargers and charge at rapid rate went a long way toward my decision to buy this car.
 
Thanks for the replies. The next time I do a test drive, I will try to repeat the drive with the ‘23 MX and compare. Somewhat pointless as they both are efficient and charge quickly, but I’m curious if there was any improvement (or slight regression.. heavier car).
 
BiruBoy11 said:
I can get 3.5 miles/kWh 30-40 mph on 22/23s on my GDE, high regen. I am at 3.1 miles/kWh over 1500 miles, including higher speed driving
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Just leased. Gravity GT 2026: ( 7 seater/ 21/22 tires). 4 people ///. Drve in 2 days we drove from Tyson Corner to VA beach then to High Point NC and back to Suffolk VA/
750 miles in 2 days….
We had efficiency of 2.83.
Speed was: 75 mpg most of the way.
When driving 60 mpg // efficiency was 3.1
 
this is a great and honest real world efficiency report
thank you
 
My car is still quite new, so not a big sample size, but here's one data point: The first ~200 miles were on highways (75-80mph) and two lane mtn. roads (similar speeds, with some slowdowns for traffic/passing/small towns). I averaged 2.95. The last week, after a charge, in about 200 miles of city and suburban driving in the 30-50 mph range, my efficiency has been 3.6. Temps in the 40-60 degree range, lots of ups and downs (I live in Colorado). Not quite as good as my AGT, but still not bad. Oh, and 5-seater, small wheels.
 
I’m concerned that my Gravity with only 600miles on it of mostly city driving, has a rear drive unit issue - my efficiency is only about 3mi/kWh. This is super low right? I have a 7 seater Grand Touring with the 20/21 inch wheels. Temps in 50s to 60s mostly.

How much does it go up after the 2k mile break in period? I see everyone posting about 3.5-4.5 but I am nowhere near that.

Would welcome any thoughts here.
 
RajD said:
I’m concerned that my Gravity with only 600miles on it of mostly city driving, has a rear drive unit issue - my efficiency is only about 3mi/kWh. This is super low right? I have a 7 seater Grand Touring with the 20/21 inch wheels. Temps in 50s to 60s mostly.

How much does it go up after the 2k mile break in period? I see everyone posting about 3.5-4.5 but I am nowhere near that.

Would welcome any thoughts here.
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I think the reports of 4.5 m/kWh are from Air drivers? That would be a shockingly long range for a Gravity, delivering well above 500 miles of range. The first State of Charge range test got a range of about 3 m/kWh, and Lucid immediately said that one of the drive units needed work. So if you really cannot do better than that with an efficient driving style on 20/21 wheels, I'd complain to the service team. Near as I can tell from forum reports, the 2000 mile break-in period doesn't deliver dramatic efficiency improvements, just subtle ones. That said, a heavy foot, winds, elevation, or other factors can all easily push the efficiency down to 3 m/kWh, so it's not a sure thing that something is wrong with the vehicle.

You can test it by finding a flat road that permits a steady 70 mph without traffic impeding your progress, and on a calm warm day set the cruise control and see what the efficiency looks like after an hour of driving. A controlled test like that will tell you more than looking at your efficiency after whatever random driving you've done. You don't need to do a full multi-hour drive until 0% test to evaluate the efficiency.
 
Thanks for this. Ok will do. It seems pretty low to me considering the type of driving I’m doing.
 
RajD said:
I’m concerned that my Gravity with only 600miles on it of mostly city driving, has a rear drive unit issue - my efficiency is only about 3mi/kWh. This is super low right? I have a 7 seater Grand Touring with the 20/21 inch wheels. Temps in 50s to 60s mostly.

How much does it go up after the 2k mile break in period? I see everyone posting about 3.5-4.5 but I am nowhere near that.

Would welcome any thoughts here.
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3.0 isn’t bad. I don’t know about the 20/21, but the “rated” range for the 21/22 assumes 3.30 mi/kWh. I definitely do not think you have a DU issue with 3.0, but can also call CS and ask them to look at logs rather than try to get an appointment.

Also, you can look at car’s internal energy app to see what’s taking range, etc. It’s very helpful.

Also, if you drive in swift or sprint, you automatically get less efficiency even if you aren’t driving aggressively.

Anyway, I’ve gotten up to 3.4 but only on highway driving, temps about 55-65 and almost no real elevation change. Rain and clear skies. 4.5 must have been an Air driver. No way I see that happening in a seven seat GGT unless it’s downhill for 100 miles!

I have seven 7 seat, 21/22 GGT.
 
I’m driving in smooth mode, high regen, but I would think city driving would get me higher efficiency than highway speeds. Am I wrong about this? Just seems that on 20/21 wheels, I should be above 3.0mi/kWh.
 
RajD said:
I’m driving in smooth mode, high regen, but I would think city driving would get me higher efficiency than highway speeds. Am I wrong about this? Just seems that on 20/21 wheels, I should be above 3.0mi/kWh.
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I think I’ve read that the optimal speed for range is around 25-35mph for electrics, depending on the vehicle and also assuming no hvac use. If you’re in the city in lots of traffic, you’re probably averaging less than that and the energy app should tell you that (thanks to Ron Burgundy for mentioning it).
 
I think 3 mi/kwh is typical for mixed driving. 3.5 mi/kwh is good target for optimized driving. Much higher than that is not happening. 4 or above is never going to happen.
 
@niceInBoston I also get those ranges in my 2025 X. I only have 2K miles on it and my life time is 250 wh/mi. But under the conditions you describe I often get in the 220 wh/mi range. The EPA rating is 280 wh/mi. Really impressed with the X efficiency.

I’ll be curious what former X owners think of their Gravity after a couple years of ownership.
 
Bdr100 said:
I think 3 mi/kwh is typical for mixed driving. 3.5 mi/kwh is good target for optimized driving. Much higher than that is not happening. 4 or above is never going to happen.
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In a seven seater, 3.5 may be a bit unrealistic - maybe it isn’t with he 20/21. I’ve driven in optimal conditions and gotten 3.41 and aside from hypermiling, I was doing all I could for efficiency.

As I’ve mentioned, oddly, I receive the best efficiency on the highway in optimal conditions.
 
Ron_Burgundy said:
In a seven seater, 3.5 may be a bit unrealistic - maybe it isn’t with he 20/21. I’ve driven in optimal conditions and gotten 3.41 and aside from hypermiling, I was doing all I could for efficiency.

As I’ve mentioned, oddly, I receive the best efficiency on the highway in optimal conditions.
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That would be unusual if highway is your best unless you were going like 55mph or something.

I know the type “cow path” roads OP is talking about. They go for long stretches with very few stops and often no traffic. I’m on those types of roads in NH a lot.

On a good day I can probably do a road trip from central NH to Maine (all cow paths) and back and hit close to 5.0 mi/kwh. They can even have some hills and AC running (but AC not running that hard).

I’d be surprised Gravity could not do the same or better.

Most EV’s peak around 40 mph, where you have no stop and go and Wind resistance isn’t too high.
 
mswlogo said:
That would be unusual if highway is your best unless you were going like 55mph or something.

I know the type “cow path” roads OP is talking about. They go for long stretches with very few stops and often no traffic. I’m on those types of roads in NH a lot.

On a good day I can probably do a road trip from central NH to Maine (all cow paths) and back and hit close to 5.0 mi/kwh. They can even have some hills and AC running (but AC not running that hard).

I’d be surprised Gravity could not do the same or better.

Most EV’s peak around 40 mph, where you have no stop and go and Wind resistance isn’t too high.
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Agree re: “unusual” for an EV to have better highway efficiency. But, I’ve been driving EVs for 12+ years and my Gravity gets best efficiency on the highway after 7,000+ miles by at least 10%.

I am not a harsh accelerator in city/suburbs, but I do use DDPro and cruise at about 60-68 on highway for long road trips and that’s how I got 3.4 mi/kWh. In and around town, in ideal whether, I can get 3.0 or so, but I have to try to not accelerate much at all.
 
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