Tesla range estimates called into question in independent tests
– Feb. 10th 2021 2:53 pm ET
Tesla range estimates are called into question in new independent tests by Edmunds showing that Tesla’s vehicles don’t hit their EPA estimates.
Range estimates
There are no good range estimates for electric vehicles. There are just bad ones, with some being not as bad as others.
To be fair, that’s also the case for gasoline-powered vehicles, but range has been more of a focus for electric vehicles due to the fact that they have a shorter range, especially at the beginning of the transition.
Range is based on the energy capacity inside the vehicle and its efficiency.
However, efficiency can be affected by a ton of different factors, including speed, temperature, elevation, and more.
The EPA range estimate is believed to be the most accurate, but it’s not the same for every electric vehicle, as manufacturers have the option to play with the numbers a little, depending on how conservative or aggressive they want to be.
Tesla range estimates vs other automakers
Tesla is famously the leader in the EV industry when it comes to range and efficiency based on the EPA numbers.
However, the automaker has been known to play with the numbers a little, and in recent years, some owners have been complaining about not being able to achieve the estimate in real-world conditions.
Edmunds tried to compare the EPA ratings of 15 electric vehicles, including five Tesla vehicles, against real-world range, and here are the results:
| Vehicle | EPA estimated |
Edmunds tested |
EPA estimated |
Edmunds tested |
Ambient temperature |
|---|---|---|---|---|---|
| 2021 Audi e-tron sportback |
218 miles | 238 miles* (+9.2%) |
44 kWh/ 100 mi |
38.2 kWh/ 100 mi (+13.2%) |
71° |
| 2020 Chevrolet Bolt |
259 miles | 277 miles (+6.9%) |
29 kWh/ 100 mi |
25.7 kWh/ 100 mi (+11.4%) |
60° |
| 2021 Ford Mustang Mach-E AWD Ext Range |
270 miles | 304 miles (+12.6%) |
37 kWh/ 100 mi |
33.1 kWh/ 100 mi (+10.5%) |
62° |
| 2020 Hyundai Ioniq Electric |
170 miles | 202 miles (+18.9%) |
25 kWh/ 100 mi |
20.8 kWh/ 100 mi (+16.8%) |
70° |
| 2019 Hyundai Kona Electric |
258 miles | 315 miles (+21.9%) |
28 kWh/ 100 mi |
22.3 kWh/ 100 mi (+20.4%) |
61° |
| 2020 Kia Niro EV |
239 miles | 285 miles (+19.2%) |
30 kWh/ 100 mi |
25.3 kWh/ 100 mi (+15.7%) |
67° |
| 2020 MINI Cooper SE |
110 miles | 150 miles (+36.5%) |
31 kWh/ 100 mi |
21.8 kWh/ 100 mi (+29.7%) |
62° |
| 2020 Nissan Leaf Plus SL |
215 miles | 237 miles (+10.2%) |
32 kWh/ 100 mi |
27.1 kWh/ 100 mi (+15.3%) |
67° |
| 2021 Polestar 2 Performance |
233 miles | 228 miles* (-2.1%) |
37 kWh/ 100 mi |
35.2 kWh/ 100 mi (+4.9%) |
67° |
| 2020 Porsche Taycan 4S |
203 miles | 323 miles* (+59.3%) |
49 kWh/ 100 mi |
32.3 kWh/ 100 mi (+34.1%) |
73° |
| 2020 Tesla Model S Performance |
326 miles | 318 miles* (-2.5%) |
35 kWh/ 100 mi |
32.6 kWh/ 100 mi (+6.9%) |
60° |
| 2018 Tesla Model 3 Performace |
310 miles | 256 miles* (-17.4%) |
29 kWh/ 100 mi |
30.1 kWh/ 100 mi (-3.8%) |
61° |
| 2020 Tesla Model 3 Standard Range Plus |
250 miles | 232 miles* (-7.2%) |
24 kWh/ 100 mi |
23.0 kWh/ 100 mi (+4.2%) |
67° |
| 2020 Tesla Model X Long Range |
328 miles | 294 miles* (-10.4%) |
35 kWh/ 100 mi |
35.0 kWh/ 100 mi 0.0% |
60° |
| 2020 Tesla Model Y Performance |
291 miles | 263 miles* (-9.6%) |
30 kWh/ 100 mi |
29.6 kWh/ 100 mi (+1.3%) |
65° |
As you can see, Edmunds was unable to achieve the EPA range on any of the Tesla vehicles, while they beat the EPA range by some decent margins in other electric vehicles.
Electrek’s Take
Again, no range test is perfect, but I think the comparison here is what most people would experience and what I’ve experienced myself, having driven almost all the vehicles on that list.
Tesla is more aggressive in its advertised range while other automakers tend to be more conservative.
Now let me be clear: You can still achieve the EPA range in Tesla vehicles, and it doesn’t mean that Tesla is lying. There are allowed to play within a margin (a multiplier) in the EPA rating.
Those are just different strategies that are being adopted by the different automakers. Ideally, you want more consistency in the industry, but that’s the state of it right now.
The EPA ratings are better than nothing, but I do like this trend of automakers being more conservative since I think it’s better for range anxiety to an accurate or conservative displayed range than having a long advertised range.
FTC: We use income earning auto affiliate links. More.
Subscribe to Electrek on YouTube for exclusive videos and subscribe to the podcast.
You’re reading Electrek— experts who break news about Tesla, electric vehicles, and green energy, day after day. Be sure to check out our homepage for all the latest news, and follow Electrek on Twitter, Facebook, and LinkedIn to stay in the loop. Don’t know where to start? Check out our YouTube channel for the latest reviews. Guides 
Tesla
Tesla is a transportation and energy company. It sells vehicles under its 'Tesla Motors' division and stationary battery pack for home, commercial and utility-scale projects under its 'Tesla Energy' division.
About the Author
Fred Lambert
Fred is the Editor in Chief and Main Writer at Electrek.
You can send tips on Twitter (DMs open) or via email: fred@9to5mac.com
Through Zalkon.com, you can check out Fred’s portfolio and get monthly green stock investment ideas.
Fred Lambert's favorite gear
Zalkon Green Stock Ideas
Get interesting investment ideas by Fred Lambert 
ChargePoint Home charger
ChargePoint Home WiFi Enabled Electric Vehicle (EV) Charger