Gravity 75 mph Range

[Elfin]

I finally found those on the Lucid website, doing different build configurations. 3rd row seats cost 13 miles (~3%), larger wheels cost 43 miles (~10%), while both combined cost 64 miles (14%).

One of the biggest reasons I'm willing to pay $100k+ for a Gravity is to get mega range in a vehicle of this size/form/luxury. We road trip a lot (7-8 trips/year averaging 2000 miles each). It's usually just 2 of us so we don't need the 3rd row (but all the extra storage space will be great!). Sacrificing significant range for a bigger wheel seems crazy to me. I never found the look of bigger wheels to be much improvement anyway. In fact I'd rather have smaller wheels. More sidewall usually mean a softer ride.

I want as much of that 450 as I can get. Hoping for a realistic 400 at highway speeds (280 from 10-80%). We've done a ton of road trips stopping every 100-150 miles to charge, which is doable, but 400+ means we can do a full day in almost the same time as an ICE drive (750 miles in just 2 refueling stops).

The tires on the bigger wheels have more traction (hence the lower efficiency) and the difference in range probably isn't as large as the EPA numbers suggest (rolling resistance is a smaller percentage of highway vs. city range)
The third row range hit is just because the EPA calculation rounds the car weight in 500lb increments so it's 6000lbs for the 2 row and 6500lbs for the 3 row.
Really hoping the Gravity hits 160mi in the Out of Spec 10% challenge (15 minute charge to get 160 miles of 80mph range).

 

[dbsb3233]

The tires on the bigger wheels have more traction (hence the lower efficiency) and the difference in range probably isn't as large as the EPA numbers suggest (rolling resistance is a smaller percentage of highway vs. city range)
The third row range hit is just because the EPA calculation rounds the car weight in 500lb increments so it's 6000lbs for the 2 row and 6500lbs for the 3 row.
Really hoping the Gravity hits 160mi in the Out of Spec 10% challenge (15 minute charge to get 160 miles of 80mph range).

It will be curious to see reports from people that have the 450 trim. I know all these EPA range numbers are fuzzy (to say the least). The tires probably don't make a full 10% difference. That seems like too much. If it is less, I suspect it's the 450 that's exaggerated, unfortunately.

Not that it's not still a lot of range either way, but more is always better, and just offers more options for when to stop, how far we can go off interstate, and not being as much of a slave to charging. More ICE-like with less care about it all.

 

[Ron_Burgundy]

I have 7 seats and 21/22 - so range is 386 per Lucid. What’s absurd is range is like 436 on the 20/21 with 7 seats. The wheels have a huge impact. I’d wanted the smaller ones but took an inventory car.

And I DO have the aero inserts in my 21/22.

 

[dbsb3233]

I have 7 seats and 21/22 - so range is 386 per Lucid. What’s absurd is range is like 436 on the 20/21 with 7 seats. The wheels have a huge impact. I’d wanted the smaller ones but took an inventory car.

And I DO have the aero inserts in my 21/22.

We ran into the same thing with the Porsche Macan we bought in June (my partner's car). We wanted the smaller 20" wheels but the closest inventory one we could find to get everything else we wanted had the 22" Sports wheels. We went ahead and bought it, even though it was an extra $4500 for those wheels we didn't even want. That stung a little. Turns out the air suspension overcomes that and gives it a smooth ride anyway, but we do seem to take a noticeable range hit relative to what people report with the 20" wheels.

But as Elfin said, it may be the difference in tires more than the wheel size. In the Gravity configurator I see the 20/21 are Hankook Ions, the 21/22 are Michelin Primacys, and the 22/23 are P Zeros. I've used both of the first two on our Mach-E (seem similar but I got slightly better efficiency on the Primacys).

 

[hank-iv]

Providing data for a 193 mile drive. Starting elevation is about 250ft, ending elevation is 2,600ft. Most of the climb is last 45 miles, but lots of up and down before that. All highway but for first couple of miles and last 10 miles. I went about 75mph entire time on highway.

Temp was about 75, no wind, sunny. All numbers from the Lucid energy in car app.

Started with 308 miles of rated range ,80% for my 21/22s A/S.

“Consumed” 249 miles of range and had 2.76 miles/kWh consumption. Interestingly, 35.3 miles of consumption were from “elevation”.

As a comparison, my wife did the same trip today, same conditions, in our 2022 X, started with 293 miles of range and ended with 85 miles of range. So 208 miles of consumption on 20” all season Michelins for the X versus my 249. She also drives just as fast (or faster!). Not sure what the X numbers really indicate or if it’s apples to apples, but thoughts folks here would be interested.

Is this drive part of the one with the window stuck open? I would think that might create some extra drag.

 

[Ron_Burgundy]

Is this drive part of the one with the window stuck open? I would think that might create some extra drag.

Yes. Excellent point. Last 40 miles or so had rear passenger window stuck all the way open (which is halfway down on Gravity), which meant I had to crack open a front window to avoid buffeting. Certainly got some drag there.

I have an amazing photo of it with a tarp over the window right now when not in use, but don’t want to post it as I don’t want rando sites using it to say there’s a massive issue. I am confident service will repair it Monday morning at my house.