Tesla Model 3 Ultimate Buyers Guide

Last updated 16-Nov-2025

The Tesla Model 3 was launched in 2017 and gradually started rolling out to different countries. The model was Tesla's first genuinely high volume model and there are now many thousands of used examples on the market, and in many countries. In late 2020 it went through a fairly significant update, followed by a further update in late 2023 when Tesla revealed the "Highland" version. Each update moves the quality of the car on and whilst the cars from 2017 and today look fairly similar, they are very different in terms of both build and design quality. There have also been many variations of the model, both in terms of specification and where in the world they are made. We run through the history, the options, what we think are the common issues and make some suggestions on what to buy.

Why the Model 3?

You may already know the Model 3 is the car you want although it is worth reflecting briefly on the other choices for similar money, especially if you're looking at new or nearly new Model 3 cars.

  • You'd buy a used Model S over a Model 3 if you wanted more space and comfort, although the Model 3 is not small, and the comfort has improved with the Highland model. Whilst one of the initial claims of the Model 3 over the Model S was that it came with "newer technology", this is only partly true. The older Model S can have the MCU (media screen) upgraded if it was of the older type, and Tesla will also upgrade the Autopilot hardware on cars built since late 2016 if the FSD option is purchased (although this is currently limited to HW3). The 2021 facelift Model S now has more advanced technology than the Model 3, although these will be more expensive, and in general you will get an older Model S for the equivelent money to a Model 3. The Model 3 is the more agile car, but the Model S, especially with the 100kwh battery packs used since 2017 are surprisingly quick and great cross coutnry cruisers with a more refined suspension.
  • The Model Y offers a lot more practicality over the Model 3 for relatively little extra money, although this is primarily due to the higher sitting positions and the hatch boot. It was hard to argue a case in favour of the Model 3 other than the better ride however the Highland model has changed that and botht he Model 3 and Model Y have distinct advantages over the othe. The Model 3 is more nimble to drive and arguably looks better, the Model Y has more space.
  • The Model X is at the complete opposite end of the spectrum to the Model 3 being bigger, heavier and more expensive. It's hard to imagine potential Model 3 buyers would consider a Model X. A similar argument can be made for the Cybertruck.

Alternatives

The Model 3 has had an increasing number of competitors over the years. The obvious contenders are the Ford Mach E and Polestar 2 and from 2022 cars such as the BMW i4 and Hyundai ev6 which combine the performance needed to match the Tesla with a step up in refinement and luxury against the original Model 3, something Tesla have addressed with the Highland version. There is also increasing competition from China with the cars from the likes of BYD. People are still often drawn to Tesla for the supercharging network although in Europe this is no longer a differentiator as the network is largely open to all and there is an abundence of 3rd party chargers, and in the US, the market is standardising around the Tesla charging connector to allow the same.

The Highland update in 2023 introduced significant improvements in refinement with the only downside being the removal of indicator stalks. Even this has been addressed with cars from late 2025 have an indicator stalk, something that can also be retrofit. We'd still like a few more controls on the stalks for wipers, lights etc and not the scroll wheels and push buttons, but people generally get used to it.

New or used?

The Highland Model 3 is now available everywhere. Tesla sales are struggling compared to previous years and very competitive finance agreements can be had on new and demo cars, and even deposit contributions. Nearly new CPO models are often 20% below the new price, however these do not attract the cheap finance.

When considering new or used, the key differences in summary however are:

History of changes

The Model 3 had a soft facelift in 2021 and a further significant update in 2023, we have a buyers guide for the highland model if this interests you.

The 2021 model year included a number of fairly substantial technical changes plus the notable change to the car window trim:

  • new centre console
  • dark window trim instead of the chrome
  • introduced the heat pump previously seen on the Model Y
  • added a heated steering wheel (to LR and P models, and later the SR+)
  • changes to the front door cards carrying the dash accent onto the door
  • laminated front side windows, although this appears to make no difference to the sound insulation
  • battery size changes although these vary by country

The changes did not all occur at the same time, 2021 model year cars delivered at the end of 2020 may not have all the changes listed. The Made in China LR models still seem to ship with the slightly smaller battery which are sold into right hand drive countries. For a full list of the changes and in which year see our guide to Tesla model 3 history and changes over time.

Further changes occured at the end of 2021 with more battery changes, changes to the MCU processor (introducing the Ryzen MCU), tweaks to the motors etc. These changes are more evolutionary in nature.

The 2023 "Highland" update was more significant:

  • updates to the interior including ventilated seats, more ambient lighting, a brighter MCU and upgraded hifi on the Long Range and Performance model.
  • A revised front, without fog lights, and new thinner headlights.
  • The rear receiving a new lower bumper that follows the DNA of the Model Y
  • Significant improvements in efficiency increasing the range from new tyres and changes tot he shape, although the motors and batteries are unchanged.
  • New wheel designs and some new paint colours.
  • Overall improvements to sound insulation.
  • Updates to the suspension refinement.
  • The Performance model has a new rear motor, sports seats and adaptive suspension.

The new Highland Model 3 is now widely available and such is the level of change, we have a dedicated guide to the Tesla model 3 Highland which goes into more details about the good and bad of the car.

Ultrasonic Sensors (USS) for parking

For many years, Tesla used Ultrasonic Sensors, also known as USS sensors, or parking sensors, to advise drivers of the provimity of objects close up to the car when parking. In a controversial move, Tesla removed these from the car specification and expected drivers to rely on either the backup camera, or a software generated version of parking sensors using the cameras around the car as part of a software suite they call Tesla Vision. The performance of this is still very variable, and a number of features are currently not available on cars without USS.

The key dates are:

Media control unit (MCU) processor

The Media Control unit or MCU came with an Intel processor for many years. This is a power processor and in many regards did not need to be changed, however Tesla changed the procesor to a Ryzen one, similar to the one installed in the 2021+ Model S and Model X. This is the basis for more the latest software development and some features are only available on the Ryzen processor sich as Zoom. On the Model S and Model X, the Ryzen processor has more memory and can play Steam games, and it is possible that this type of technology will also pass to the Model 3 in time.

The key dates are:

Battery size and range

At launch Tesla promised the $35k car which was the standard range, however few cars were delivered in this spec. In some countries compliance cars were made to meet regulatory targets and these are similar to standard range cars and are stripped down and reduced feature cars. The Standard Range Plus, Medium Range, Long Range and Performance cars followed with a combination of rear wheel drive and all wheel drive specs. The Long Range and Performance models were full premium specification with rear heated seats and higher spec sound systems and the larger battery also means it can charge slightly faster. Over time, the premium specification became standard on all cars with the exception of the HiFi. We generally advocate larger batteries, but for a entry level car especially if primarily a local run around car, the SR+ model is perfectly viable for most. As a rsult of the continued improvements to specification we would also advocate a later SR+/RWD model with heated steering wheel and heat pump over an earlier Long Range model without those items.

The Model 3 is one of the more efficient EVs you can buy, but that efficiency also means any changes in inefficiency can be magnified. The WLTP and EPA test results are also fairly limited in what they tell you as the weather, driving style and speed can all cause significant fluctuations in the available range. In cold weather energy is required to heat the cabin and the car efficiency is reduced as the battery warms up, the smaller the battery the larger the proportion of available energy goes to heating, as a result, stop start journeys in winter are worse than a single continual drive, and we've a page dedicated to cold weather driving to provide tips on how to improve range.

The cars with the heat pumop fair better in the winter, and the LFP battery cars with their willingness to charge to 100% can use more of their quoted range in the the real world.

Which model?

When buying new, the choices are now:

We feel the Long Range offers the best value for money on older cars, although if looking at new, the RWD models are a great lower cost entry point. The performance of the LR model can be improved for relatively little money becoming virtually on a par with the M3 Performance, it can also be specified with a tow bar, and has all the features on offer such as heated steering wheels. If looking at older cars we are put off slightly by the SR+ as the specification of the car is lower thant he Long Range, although if budgets are tight, then these are probably the best entry level choice to Tesla ownership, preferable to the early Model S cars which are older and increasingly out of warranty.

Battery codes

Tesla use 2 different conventions for naming batteries. In the car configuration which you can sometimes access through MyTesla and can see when looking at inventory cars they use a code such as BT37, whereas on formal import paperwork they use a code such as EC5D. Websites like TMC often discuss the batteries using the E5CD type codes but potential buyers then have difficulty matching that to inventory in their region as Tesla don't use these codes in their inventory listings. EC5D also decodes as the first E signifies Model 3, 5C is the battery, and D or R represents either dual or rear motor cars. The table below helps match one to the other:

Standard Range+ (or just "Model 3" from late 2021)

  • BT35 which is the Panasonic 53kWh battery with 2170 NCA cells, coded 1/1C
  • BT41 which is the Panasonic 55kWh battery with 2170L NCA cells, coded 1L
  • BTF0 which is the CATL LFP55 55kWh battery with Prismatic LFP cells, coded 6C
  • BTF1 which is the CATL LFP60 62kWh battery with Prismatic LFP cells, coded 6L
Long Range and Performance models
  • BT37 which is the Panasonic 75kWh battery with 2170 NCA cells, coded 1/1C
  • BT38 which is the LG Chem M48 75kWh battery with 2170 NMC cells, coded 5/5C
  • BT42 which is the Panasonic 82kWh battery with 2170L NCA cells, coded 3L
  • BT43 which is the LG Chem M50 79kWh battery with 2170 NMC cells, coded 5L
Since then, Tesla have introduced more batteries although the changes are typically only small changes in capacity or a change of manufacture.

Each Tesla has a model code which is a combination of various factors including the battery. There are a surprising number of permutations which we used to list, but it is now easier to type in the MT3xx code into our options look up tool and we will tell you the specification for that car.

Autopilot

All Model 3 cars come with Autopilot hardware so the only material choice is the software level installed.

With the removal of the ultrasonic parking sensors (USS), a number of EAP features are not yet fully operational. As a result we feel paying for Enhanced Autopilot is not currently worthwhile and is not even available in North America. The Full Self driving option is only worth considering in North America where you have access to FSD supervised. Our estimation is FSD adds about 25% of the option purchase price to the value of a car on resale, so if you are looking at a car with FSD and one without, expect to pay about $2k more. We don't feel the current asking price from Tesla is ever reflected in used car prices.

It is believed that the Highland update included the shift to HW4.

Options

The Model 3 has few options besides exterior and interior color. There are however a few things to look out for:

What features does the car have?

To find out what is activated in the car follow this guide on how to find out what hardware versions a Tesla has. Many dealers are now including the required pictures in their adverts and those that do, clearly understand the cars.

Where was it made, and does it matter?

The simplest way to tell where the car was made is to look at the VIN. Using the 11th digit of the VIN tells you the factory, F is Fremont, and C is China. Some use the first 3 letters of the VIN (5YJ and LRW respectively) but this rule does not apply to all Teslas. Our VIN decoder provides additional information on the car. You can also look at out factory production plots to work out more or less when the car was built.

Free Supercharging

No model 3 came with unlimited free supercharging for the life of the car. Tesla have however offered a year free supercharging to cars delivered at the end of 2020. It is not clear if this is transferable to new owners within the year, generally speaking since 2017 any free supercharging given to new car buyers has not been transferable..

Common Model 3 issues

The model 3 was a new platform and Tesla seem to have learnt from a number of the previous issues, however they have also introduced some new ones. Most of the Model 3 issues are factory issues and not ones that develop over time so the owner or a good condition car is likely to run into fewer problems over time, however getting a car in good condition can be harder than it should be because of Tesla's stance.

Warranty

Model 3 cars come with 2 manufacturer warranties. One covers the battery and motor for 8 years and 100k or 120k mile warranty depending on battery size, whichever comes sooner. This covers the owner against failure or battery degradation although Tesla have written into the warranty that that battery losses due to software changes are allowed.

The second warranty is the general car warranty for everything else. This lasts for 4 years or 50k miles, which comes sooner. Few Model 3s will be out of warranty except based on mileage.

What would we buy used?

We don't particularly have a favourite. The SR+/RWD models tend to be significantly cheaper and offer good entry level value, the Long Range offer a more comfortable ride than the Performance and have better range, but the performance cars are great fun. We'd question buying FSD for a SR+ car and would suggest a Long Range without FSD for the same money would be more sensible and hold its value better.

The facelift cars starting in 2021 also have a number of advantages over the earlier cars with items like the heat pump and heated steering wheel. We would take a higher mileage 2021 or later car over a lower mileage earlier car every time.

If you're looking to buy new, then they are all good cars.

If you're looking at a slightly older car then we'd probably look at the Long Range AWD Model.

The Highland Performance car is has more power and the adaptive suspension but some find the sports seats uncomfortable. We would probably chose a late 2023 car over a highland if you wanted the performance, although this view is only because the Highland Performance cars are still relatively expensive.

You can check the whole market and compare prices between models on our Inventory listings.

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