2023 Tesla Model 3 prices under £20,000

There are 25 used 2023 Tesla Model 3 cars for sale under £20,000 from UK dealers on AskCar, as of 4 November 2026. Typical asking price £19,000 (the median: half cost less, half cost more). The cheapest is £14,500. The middle half are priced between £18,200 and £20,000. Median mileage: about 62,000 miles.

Dealers lowered the asking price on more than one in ten of 2023 Tesla Model 3 cars under £20,000: 5 of the 25 in the 14 days to 4 November 2026.

AskCar lists 1,307 used Tesla Model 3 across the UK, from 543 dealerships.

As of 4 November 2026, AskCar lists 592,552 cars and vans from 12,964 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2023 Tesla Model 3 cars for sale now under £20,000, page 1 of 2

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 23 of the 24 cars listed here meet these rules. Page 2 lists every other 2023 Tesla Model 3 car, cheapest first, including the one the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,206 priced Tesla Model 3 adverts on AskCar as of 4 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2023 Tesla Model 3.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

This list leaves out 1 car whose advertised mileage is lower than the mileage recorded at its last MOT test.

Best value 2023 Tesla Model 3: priced furthest below the AskCar estimate

These 10 are priced 0% to 6% under their AskCar estimate. Their asking prices run from £17,894 to £20,000.

Cheapest 2023 Tesla Model 3: the lowest asking prices

These 10 are priced £14,500 to £18,890. They have covered 50,000 to 124,000 miles.

Lowest-mileage 2023 Tesla Model 3

These 10 have covered 42,000 to 61,428 miles. Their asking prices run from £18,499 to £20,000.

Recently reduced 2023 Tesla Model 3: the biggest price reductions in the 14 days to 4 November 2026

The dealer lowered the asking price on each of these 5 in the 14 days to 4 November 2026. Their reductions since AskCar first saw them run from £24 to £1,000.

Newly advertised 2023 Tesla Model 3: first seen by AskCar in the 7 days to 4 November 2026

These 3 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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