2023 Tesla Model 3 prices under £20,000

There are 26 used 2023 Tesla Model 3 cars for sale under £20,000 from UK dealers on AskCar, as of 7 November 2026. Typical asking price £19,500 (the median: half cost less, half cost more). The cheapest is £16,988. The middle half are priced between £18,700 and £19,900. Median mileage: about 61,000 miles.

Dealers lowered the asking price on more than one in ten of 2023 Tesla Model 3 cars under £20,000: 4 of the 26 in the 14 days to 7 November 2026.

AskCar lists 1,202 used Tesla Model 3 across the UK, from 518 dealerships.

As of 7 November 2026, AskCar lists 601,018 cars and vans from 12,892 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. All 26 cars listed here meet these rules. Page 2 lists every other 2023 Tesla Model 3 car, cheapest first.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 1,186 priced Tesla Model 3 adverts on AskCar as of 7 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.

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

These 10 are priced 2% to 7% under their AskCar estimate. Their asking prices run from £17,894 to £19,999.

Cheapest 2023 Tesla Model 3: the lowest asking prices

These 10 are priced £16,988 to £18,976. They have covered 50,000 to 95,390 miles.

Lowest-mileage 2023 Tesla Model 3

These 10 have covered 38,100 to 55,071 miles. Their asking prices run from £18,499 to £19,999.

Recently reduced 2023 Tesla Model 3: the biggest price reductions in the 14 days to 7 November 2026

The dealer lowered the asking price on each of these 4 in the 14 days to 7 November 2026. Their reductions since AskCar first saw them run from £24 to £642.

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

These 5 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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