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Discussion Starter #1
Congested freeways everywhere yielded only 36 mph average speed, peak speed held to 65 mph, but traffic kept that from happening much.

123.8 miles used 39% of the charge at 72°F.
Jaguar Remote claims 3.77 miles per kWh, which would be 319 miles using 84.7 kWh.

But all that stop and go stuff chews up the time. Still pretty good for 'City' range. I ran it in Battery Saver mode, low regen, no creep, and was careful to limit the amount of regen and braking. This ended up being a huge loop from Riverside County (Norco), down the 91 fwy, to the 55 to Newport Beach. Took PCH up north until I wanted to shoot myself from the insane traffic, took Goldenwest east to the 405 North which became a parking lot, so I took 710 towards Pasadena, which backed up. Ended up on 60 headed East, to the 71 fwy which was finally some clear driving back into Norco. If I could have found a open freeway, I would have turned around at 45% remaining, but I got nowhere near that.

My other test failed. I installed a Dashcam/Digital Rearview Mirror. This attaches to the front of the existing mirror, and you swipe your finger to change from front to rear, or elevation of the camera view. It could be turned off to use as a standard mirror. It was functional, but the surface 'ghosts' the interior badly, you see both the interior of the vehicle and the digital image at near equal intensity. I loved how much area I could see behind me, but the reflection was really bad. It also has the Pulse Width Modulation effect on some headlights, it makes them appear to flicker.

I might play with it some more. The recording feature was enough to keep it and possibly customize it.
 

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That's some nice click bait you posted, McRat! :wink2: Glad to hear what's theoretically possible, even if unrealistic. With recent 'uncompromised' speed (75-80 mph) open highway travel, in Comfort mode with typical radio, HVAC, and seat warmer use (yeah, I like it even in 70-degree FL weather), oh-and iPhone charging as I'm accustomed to doing, I'm seeing range dip in mid- high-180s, or about a 20% drop from 'advertised' figure. Again, I'm pushing it on speed (plenty of time spent at 75+) not 'trying' to achieve anything (good or bad), just seeing what normal driving behavior and settings will achieve. SFLGator and Electro previously reported seeing highway range in the 190s, presumably without seat warmers/device charging, so pretty consistent with my results. Anyone else seeing better or worse under long and normal speed (75+mph) open highway mileage? Next long (100+mi) trip I might try optimizing (Eco mode, no HVAC or seat warmers, no charging devices, regen OFF (vs. low) etc.) to see what's possible in more efficient (but not hypermiling) long haul conditions.
 

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Discussion Starter #3
My goal was to go 2 hours out (110-130 miles), then return and get a feel for how much I could stretch the range if necessary. Saturday I could not hit 75 unless I drove in the emergency lane. Even the HOV lanes were backed up.

All I learned was SoCal is getting worse, not better, there are more cars than Sacramento realizes, and the digital rearview wasn't to my liking. 720P is enough resolution, but the screen was too reflective.

Perhaps the only real direction to go to get a bearing on range is north on I-15 towards Las Vegas, but it has two steep grades over 4,000ft gain, and very little in the way of a backup plan once I pass Baker.
 

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Discussion Starter #4
Central California would be a better place to test. Or Florida, or virtually anywhere other than SoCal in 2019.
 

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I made the unfortunately mistake of driving through LA the Wednesday before Christmas. It has gotten so unbelievably bad.

At the turn of the century I lived in Huntington Beach but worked in Santa Monica. On a normal day the commute was ~1.5 hours. On the few occasions where I had to make the trip in the middle of the night I could do it in 35 minutes. On this trip I literally did the same commute (drove by the old office for nostalgia, then went by the old house), while actually starting early (at 3pm instead of 5:30pm). It took almost 3 hours to make that drive, and that was with Waze helping. The best I had in the past was calling my girlfriend and asking her to check the CalTrans site to see where the accidents were.

Some of my friends in Arizona or here in the Bay Area complain about the local traffic, and yes it is frustrating, but it is nothing compared to LA. I don't know how people are able to do that commute anymore and still have any semblance of sanity or personal life left.
 

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Bay Area traffic has gotten pretty awful. LA is worse. At my average pace, with no traffic, I make it to work in 17 minutes. In a sports car on a dry day, I can make it in 14-15. However, with traffic, my wife's commute on mostly the same route is normally 45 minutes. Fortunately I don't commute during traffic hours.
 

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I, too, spent the last decade of the 20th century living in LA. My 16mi commute from Manhattan Beach to Santa Monica was 20 min at 6am, but was typically 1 hour at 6pm. I also made the mistake of visiting LA with family last year, only to experience firsthand the over-development of the West Side and a 90 min drive from Santa Monica Pier to the Chart House in Redondo. Unbelievable and just unlivable. Traffic was of the top reasons I left that left coast for the left coast of Florida, and that was almost 20 years ago!
 

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Just to get this back on topic, I showed clients a bunch of homes up in the foothills outside of Denver today in the Golden area. The total drive was around 73 miles with probably a change in elevation of probably about 2k - 5280 to over 7k. A good amount of time was spent on weird single track winding roads to get to some of these strange homes with very steep hills.

The car says I used about 40% of the battery for the journey. The guessometer says I have about 130 miles left.

The weather was anywhere from 40-55 degrees and I had 2 passengers and we drove wit the A/C on.
 

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Is that good or bad? My average speed says about 25mph
 

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What a bunch of cry babies! ;) I have been commuting from Long Beach to DTLA for the past 8 years. Having a CAV sticker helps with the 405 carpool lane and the free toll on the 110 Express Lane (although they're getting rid of the free toll and instead it'll be 15% off toll for CAV stickers beginning March - wow a whole FIFTEEN PERCENT). The Jaguar I-Pace would only make the commute more pleasant.
 

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So 60% equals 130 miles
130/0.6 = 217 mile range
in thin air
actual use was ~73 miles, using ~40%; so 73/0.4=182.5 total range if continuing to have similar driving conditions. The GoM is estimating based on a long term average. Actual ‘real time’ consumption is a much better predictor for any given trip unless you will be making changes during the trip.
 

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Sounds good. I only have about 100 miles on the car so far so I'm sure the guessometer isn't fully calibrated yet. I've also spent a lot of time with the car running in the garage changing settings and such.
 

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Discussion Starter #14
Sidebar - I found that at 100% charge, the regen limiter drops off based on temperature. Since it was 72°F, it dropped at 95%. On cooler days, it has dropped off as late as 91%.
 

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#sgtpeper, I'd say range of 217 is pretty strong, especially given the elevation change, and cooler temps. 25mph helped a lot, too. Curious to see how much regen contributed (with downhill component) or offset the climb. Did you have it on low regen setting? Maybe the car takes the 'most recent' conditions (downhill run) and factors that in more heavily? I guess (no pun intended) that's why they call it the GOM - GuessOmeter.
 

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So far, I've primarily used low regen.
 

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Discussion Starter #17 (Edited)
AFAIK, all low regen does is map more of the regen into the brake pedal, like the GM products do. I'd love to find a JLR Datalogger that supports the I-Pace so I could learn about it, but I'll have to do it via experiments. If JLR would tell me what I need to buy to datalog like a dealer, I would buy it. GM's tool was $3600 in 2002 and I bought one to learn about how to optimize the performance. You go fast by figuring out what is slowing you down, not by throwing a parts catalog at it.

Attached for Tesla owners who think "My Range is always the same because my battery never wears":
I actually expanded the size of my battery by going for a drive.
197 miles = Harassing sports cars on freeways, average speed though is still only 42 mph due to traffic in areas. Speeds up to 108 mph observed.
273 miles = Using hypermiler techniques driving in region of the state at 36 mph average. Why not over 300 miles? I only used 39% of the battery, and learning takes a few drives to top out.

What a difference a day makes.
 

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I actually expanded the size of my battery by going for a drive.
197 miles = Harassing sports cars on freeways, average speed though is still only 42 mph due to traffic in areas. Speeds up to 108 mph observed.
273 miles = Using hypermiler techniques driving in region of the state at 36 mph average. Why not over 300 miles? I only used 39% of the battery, and learning takes a few drives to top out.

What a difference a day makes.
A day? I can change my range by 60 miles in about 30 minutes by simply moving the car 20 feet. Taking out of the heated garage to an outdoor temp of -10F makes it go from ~170 to about ~110 in 30 minutes! ?
 

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Discussion Starter #19
That's why a 'smart' range estimator is superior. Imagine if it said 234 miles each morning, both summer and winter. But some folk swear by just having a static number year round.
I think the reason is so they get less tech calls and complaints about low range. They really don't know what their range is unless they go on a trip that requires refueling.
 

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I don't understand why EV's don't come with TWO numbers: City Range & Highway Range - just like gas cars, but the numbers would be reversed.

Our cars are legitimately: 240 City Miles & 190 Highway Miles ... AT BEST. (And, I have no idea if running the A/C makes this appreciably worse, yet.) And, I score 90% or better on pretty much all of my drives on the ECO screen.
 
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