Prius (Mk3, Mk4, Plug-in)
120,000 to 250,000 miles
One of the UK's best-loved hybrids for two decades, and one of the models we buy most often. Mk4 (2016 to 2022) holds value best; Mk3 (2009 to 2015) is the high-mileage end of the market. The Plug-in (PHEV) variant with 8.8 kWh pack commands a premium in clean-air zones.
Common at the high end
- Hybrid battery cell imbalance at 200k+ (a specialist pack refurbishment is the usual fix)
- Inverter coolant pump replacement around 180k
- Front brake disc warping on heavy stop-start cycle cars