Why we use ranges, not a single number
Two Priuses of the same year, the same colour and the same mileage can be worth £3,000 apart. That is not market noise; it is the cumulative effect of a dozen small variables, each worth a few hundred pounds. Battery health alone can swing a Gen 4 quote by £1,500. Service history adds or removes another £500 to £800. A live PCO plate with eight months left is worth real money compared to a lapsed one. Cat S or Cat N history takes a bite. Both keys versus one key is a small but real number.
Any honest valuation has to acknowledge this. A range tells you the shape of the market; the levers below tell you where your particular car sits within that shape. If you want a precise number on your specific reg, that is what /cab-valuation is for and it takes about two minutes.
Gen 3 Prius (2010 to 2015): £2,500 to £6,000
Gen 3 cars are now the budget end of the PCO market. They are mechanically tough and many are still earning a living, but the TfL 15-year age cut-off is looming for the earliest examples and that compresses values sharply as the car ages out. A 2010 or 2011 car with high mileage and a lapsed plate is firmly in the £2,500 to £3,500 zone in most cases, and may shade into /scrap-my-cab territory if the hybrid battery is on its last legs.
A late Gen 3, say a 2014 or 2015 T Spirit with a live plate, sensible mileage for its age, hybrid health on the right side of acceptable and a tidy interior, will typically draw £4,500 to £6,000. The Plug-in Gen 3 variant is a slightly different conversation because the small lithium pack adds complexity; values track the standard car closely but condition matters more.
The key sensitivities on Gen 3 are the traction battery and the inverter. Both are well-understood failures by now, both are repairable, and both are priced into any buyer's offer. If you have a recent hybrid health check from Toyota showing a clean bill, mention it; that piece of paper is worth several hundred pounds.
Gen 4 Prius (2016 to 2022): £8,000 to £14,000
Gen 4 is the heart of the current PCO market. It is Uber Comfort eligible from the right trim level upwards, it is comfortable enough that drivers do not arrive home with backache, and the hybrid system is the most refined Toyota has put in a Prius. Demand is strong and steady.
A 2017 or 2018 Business Edition with 150,000 to 180,000 miles, full Toyota service history, current PCO and a clean MOT is typically an £8,500 to £10,500 car in 2026. A later 2020 or 2021 example with lower mileage, Excel trim and Uber Comfort eligibility moves into the £11,500 to £14,000 band. The very best 2022 facelift cars with sub-100,000 miles can push beyond that, particularly if the plate has more than a year left.
Where Gen 4s go wrong on valuation is service history. The hybrid system is reliable but the inverter coolant pump, the EGR system and the head gasket all have well-documented failure patterns that are dramatically less likely on cars serviced strictly to schedule. A Toyota main-dealer history is worth a clear premium over a mixed independent record on Gen 4 specifically, because buyers know what to look for.
If your Gen 4 is still under the Toyota Hybrid Health Check extended battery cover (renewed annually at a Toyota service up to 10 years from first registration), say so. That cover is transferable to a new owner and adds tangible resale value.
Gen 5 Prius (2023 onwards): £18,000 to £24,000
Gen 5 is the new shape, and frankly it looks like a different car. It is faster, more efficient, and considerably more expensive. The PCO market is still settling around it but values are robust because supply is limited and demand from drivers upgrading from tired Gen 4s is consistent.
A 2023 or 2024 Gen 5 with normal PCO mileage for its age, full history and a live plate sits in the £18,000 to £22,000 band. Higher-spec Excel and the limited-run launch cars push £22,000 to £24,000 when they appear. The depreciation curve is steeper than Gen 4 in absolute pounds but shallower in percentage terms, which is exactly what you would expect from a newer, scarcer model.
One word of caution: Gen 5 is heavier and harder on tyres than Gen 4, and buyers are starting to price that in. A set of four mid-life tyres on a Gen 5 is a real cost, and a quote that ignores tyre condition will be revised at inspection. Replace one if it is borderline before you sell; you will get more back than you spent.
Prius+ (the seven-seater): a market of its own
The Prius+ deserves its own paragraph because it behaves differently to the standard car. As the only mainstream seven-seat hybrid that PCO drivers can run sensibly, demand from drivers servicing larger groups and airport runs is unusually strong, and that holds values up.
A 2016 to 2019 Prius+ with sensible mileage and full history is typically £9,000 to £13,000 in 2026, comfortably ahead of an equivalent five-seat Gen 4. The premium widens further if the car is Uber XL eligible, which depends on TfL roundel and the operator's current vehicle rules. Later 2020 and 2021 examples, of which there are not many because Toyota wound the Prius+ down, can fetch £14,000 to £16,000 in good order.
The mechanical story is similar to Gen 4 but with the added factors of more interior wear from passengers in the third row and the fact that the rearmost belts and ISOFIX points are inspected at MOT. Tidy interiors command a clear premium here.
The levers: what actually moves your number
Across every generation, the same handful of variables decide where your car lands within its range. In rough order of impact:
- Hybrid traction battery health. The single biggest lever. A recent Toyota hybrid health check showing capacity in the green is worth four-figure money; an unknown battery is priced cautiously. Toyota's hybrid battery cover, renewable annually up to 10 years from first registration via the franchise service network, is transferable and adds value.
- Service history and where the car was serviced. Toyota main-dealer history beats independent for hybrid-specific work; full beats partial; partial beats none. Keep your stamps and your invoices.
- PCO plate status. A live TfL roundel with months remaining is worth more than an expired one. Selling while the plate is still active simplifies the buyer's resale and they will pay for that.
- Mileage relative to age. Within reason, PCO mileage is forgiven if the service intervals were observed. Wildly high mileage for the age still hurts; wildly low mileage helps but raises questions about whether the car has actually been earning.
- Accident and Cat history. A Cat S or Cat N marker on HPI knocks a clear chunk off, usually 15 to 25 per cent depending on the repair quality and how visible it is on inspection. Insurance write-off history is not a deal-breaker for specialists but it must be declared.
- V5C in your name and both keys. Missing V5C means a wait while DVLA reissues it; missing second key is a £200 to £400 deduction depending on generation. Neither is fatal but both are visible on the price.
- Cosmetic condition. Kerbed alloys, cracked light lenses, torn driver's seat bolster, smoke smell. Each is small individually; together they decide whether you are at the top or the bottom of the range.