Doubts may still linger about the potential of battery electric vehicles for mainstream transportation, but EVs are getting progressively better. And if the data from the Tesla Model 3 and Model Y fleet is any indication, it appears that these improvements could result, at least to some degree, in an all-electric crossover being more efficient than the early production versions of an all-electric sedan.
In a recent conversation with Teslarati, David Hodge, the founder and CEO of Embark — a transportation app company that was sold to Apple in 2013 — explained that his work on a little passion project has shown something incredibly interesting about the Model 3 and Model Y’s efficiency. Hodge is currently working on the Nikola app, a service that he hopes will eventually grow to be the CarFax for EVs. So far, users of the app have driven about 7,000,000 miles, and over 2,000 Model 3s are registered in the fleet.
These Model 3s are comprised of vehicles that were produced from the beginning of Elon Musk’s first “alien dreadnought” attempt to cars that rolled off the line this quarter. Based on data that the Nikola app proprietor shared, it is evident that the Model 3 has gotten significantly more efficient over the years. Users of the app with vehicles produced in 2018, for example, showed a real-world average MPGe of 90.3, while cars that were produced in 2019 had a real-world average of 100.4.
These efficiency improvements continued in the first half of 2020, when Nikola app users who owned Model 3s showed a real-world average MPGe of 105.2. Interestingly enough, Tesla appears to have rolled out a major improvement to the Model 3’s efficiency in the second half of the year, as vehicles produced after June 2020 have shown a real-world average MPGe of 125.7. That’s the biggest improvement in the Model 3’s efficiency yet, at least as reflected in data from the Nikola app’s users.
Inasmuch as the improvements in the Model 3’s MPGe are notable, the efficiency of the Model Y appears to be even more noteworthy. The Model Y is the newest vehicle in Tesla’s lineup today, having started deliveries earlier this year. But even with its early ramp, it is becoming quite evident that Tesla did something special with the all-electric crossover.
Nikola app users who owned Model Ys that were produced in the first half of 2020 showed a real-world average MPGe of 103.2, which was very close to the MPGe of Model 3s that were manufactured in the same period. And just like the Model 3s, Model Ys that were produced after June 2020 exhibited a significant improvement in efficiency, with the vehicles having a real-world average MPGe of 118.7. That’s higher than the MPGe of Model 3s that were produced just last year.
As noted by Hodge, such efficiency figures from the Model Y are extremely impressive, especially considering that it is larger and significantly heftier than the Model 3. This is also a pretty unique situation considering that the company’s flagship sedan, the Model S, has always been significantly more efficient than its SUV counterpart, the Model X.
“This is pretty impressive considering the obvious aerodynamic differences in the Y and the fact that the S has always outperformed the X by about 15. If you just look at cars made since June, the Model Y MPGe climbed to 119 on average, but it looks like some of the tech improvements made it over to the 3, which is seeing 125.6 MPGe average in that period,” Hodge noted.
Tesla has a habit of rolling out improvements to its vehicles as soon as they are available. The latest Teslas are therefore expected to have the best tech that the company has to offer at the time of their production. With this in mind, and as per the findings of auto teardown expert Sandy Munro, the Model Y is indeed equipped with Tesla’s best, both in tech and in design. And considering that the all-electric crossover is expected to share components with its sedan sibling, it is not very surprising to see the Model 3 experience efficiency gains as soon as the Model Y started ramping up. Such is simply the nature of Tesla.
A Tesla Semi caught fire in Hayward, California, which caused both directions of traffic to shut down for hours before being completely reopened early on Wednesday, the California Highway Patrol said.
The fire occurred just after 5:30 local time in Hayward on Tuesday, as the Semi caught fire in the southbound lanes of I-880 before CHP officials made the decision to shut down both lanes of traffic due to potential risks from hazardous chemical smoke.
There were no injuries reported.
🚨 A Tesla Semi reportedly caught fire, with California Highway Patrol confirming. The Semi was on I-880 SB
An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year
— TESLARATI (@Teslarati) October 28, 2026
The cause of the fire is currently unknown, as neither Tesla nor the CHP have not determined a cause.
However, some images taken before the Semi was completely destroyed by the fire seem to indicate this might have been an older unit, as it appears to be one of the designs that Tesla shipped as part of its pilot program, before revising it and starting mass production just a month ago.
@Tslachan From on of the videos looks like it’s an old Semi (not the refresh version that recently started production) https://t.co/KzwmR2kXow
— Area Under The Curve 🎗️ (@AreaUnderCurve) October 28, 2026
At the time of publication, CHP had not returned our request for a comment for additional details, including the Semi involved and any potential collaboration on an investigation between the CHP and Tesla. We will update this story when we hear back from them.
The southbound lanes were reopened at 3:30 a.m. on Wednesday, with the northbound lanes opening last night a few hours after the fire began. The CHP did state that the lithium batteries were “incredibly difficult to extinguish,” according to NBC Bay Area.
The truck’s driver said that the Semi caught fire, but he did not have an explanation.
An estimated 5,000 to 7,000 semi-truck and large commercial vehicle fires occur on U.S. roadways every year.
Tesla’s launch of the “Emergency Drive Away” function a few months back offered owners a safe option to evacuate an area if they were in reasonable danger. The function finally got its first use in the real world, but it appears it was by mistake.
A video shared by u/Joshalander in the r/TeslaLounge subreddit recorded the instance from his vehicle and said the incident took place in Austin this past weekend during the city’s F1 Race.
“Was charging around 6 AM this past Sunday in Austin before heading to the F1 race and heard a pop. Looked over and saw the new emergency drive-away feature in action. Genuinely felt bad for the dude when he got out and realized what happened, since he looked exhausted and only seemed to half-read the prompts.”
🚨 Here’s the first look at Tesla’s Emergency Drive Away function in action:
Apparently this driver accidentally enabled it and drove forward; you can see the Supercharger pull with the car.
Tesla said previously this would cost up to $25k if not used properly. https://t.co/B4qQRrsO6B
— TESLARATI (@Teslarati) October 28, 2026
Emergency Drive Away unlatches the Supercharger connector from the vehicle, but still causes damage to both the car and the Supercharger. Tesla has said that it will cost up to $25,000 in repairs to have everything fixed back to normal.
Additionally, the company said that if it were not used in an emergency situation, the driver of the vehicle who activated the Emergency Drive Away feature would be responsible for all repair costs.
Tesla constitutes the following situations as reasonable justifications for activating the feature:
- You face an immediate threat to your life or personal safety.
- You must leave the area immediately.
- Exiting the vehicle is unsafe.
- Unplugging the charge connector would unreasonably delay your departure or expose you to a risk to your personal safety.
After using the feature, Tesla requires the driver to schedule Service so the car can be inspected.
News
Tesla’s Cybercab battery design could make robotaxis even cheaper
Tesla built the Cybercab’s battery pack with spare room for a future switch to LFP.
Tesla built the Cybercab’s battery pack with empty space inside it on purpose, and the reason points to a cheaper robotaxi down the road.
Robert Sumpf, Tesla’s director of mechanical design engineering for battery modules and packs, said the extra room beside and beneath the Cybercab’s modules was left there so the company can move to lithium iron phosphate cells later. “So, we protected this pack to go to an even lower energy dense chemistry as we scale and need to bring LFP into the platform,” Sumpf said in a Cybercab deep dive with Munro Live.
The Cybercab runs on Tesla’s own 4680 cells with a nickel chemistry today. LFP cells store less energy for their size, so a straight swap would cut range. The reserved space lets Tesla add more LFP cells to make up the difference. In return, Tesla would get cells that cost less, run cooler and survive more charge cycles. LFP became the most used EV battery chemistry in the world last year.
Not all of that room was planned for a chemistry change. Lars Moravy, Tesla’s Vice President of Vehicle Engineering, said part of it exists because “we didn’t need as many batteries as we thought we did.” Tesla told Sandy Munro in early 2025 that it was targeting a Cybercab pack under 50 kWh with close to 300 miles of range.
The pack also breaks from the structural design Tesla used in some Model Y and Cybertruck builds. Instead of potting hundreds of cells into one block, the Cybercab uses four separate, individually sealed modules, so a bad module can be replaced without scrapping the whole pack. Sumpf was blunt about the older approach, giving the Model Y structural battery “a grade D” because it was hard to build and nearly impossible to repair. He estimated a fully structural pack gains about 10% more cell volume, but said “the issue is the service cost.”
That cost matters more for a car that rarely sits parked. Cybercab chief engineer Eric Earley said replacing an entire pack “before half a million miles is a killer on cost,” which is why remanufacturing and serviceability were built into the design from the start.
The same Munro Live tour produced Moravy’s admission that the Cybercab line at Giga Texas is now outpacing Robotaxi deployments, along with a look at the robotaxi’s unorthodox paint process. Tesla is aiming to deliver the first Cybercabs to outside customers by the end of 2026, though Elon Musk has said the vast majority will stay owned by Tesla and run as a transport service.
Sumpf did not give a date for an LFP version, name a cell supplier or say how a chemistry change would affect range. For now, the 4680 cars keep piling up: Texas DMV records from Tuesday list 544 Cybercabs authorized for Tesla’s Robotaxi fleet, more than the 507 Model Ys on the same roster for the first time.
Tesla Semi catches fire in California: what we know
Tesla’s ‘Emergency Drive Away’ function gets its first use in the real world
