2024 Peugeot 408 GT S/S Phev Auto 1.6L Hybrid electric (clean) · YH74 JMU

The 1,598cc plug-in hybrid powertrain should return official fuel economy figures of up to 250+ mpg under WLTP testing, but real-world figures for PHEVs depend heavily on charging habits — expect 40-60 mpg on longer runs if charged regularly, dropping to around 35-45 mpg if used primarily as a petrol car. As a Euro 6EA PHEV, road tax sits in a favourable band — typically around £10-£20 per year for low-CO2 PHEVs registered after April 2017. Insurance is likely to sit in group 30-35 given the GT trim and PHEV powertrain, which is worth obtaining a quote for before purchase.

Routine maintenance on the 408 PHEV should be modest: the electric motor reduces brake wear through regenerative braking, and the petrol engine runs less hard than in a conventional variant. Estimated annual running cost: £1,200-£1,500, including electricity for charging, fuel for longer trips, road tax, insurance, and a modest service budget.

With no MOT history to draw on, the focus must be on the PHEV-specific components. Check the high-voltage battery state of health via the dealer diagnostic tool — a one-year-old car should still show close to 100% usable capacity. Inspect the charging port for damage, the cable for cuts or exposed wiring, and verify that both scheduled and AC charging work as expected.

Looking at the model-level data, the most common MOT failure reason across the 692-vehicle aggregate is the headlamp — even on near-new cars this is worth a manual check, ensuring both units illuminate evenly, there is no condensation behind the lenses, and the automatic levelling (if fitted) operates correctly. Also inspect the tyres for even wear — uneven wear on a PHEV can indicate alignment issues caused by the battery weight distribution, and the 17-19 inch wheels fitted to GT trim are expensive to replace. Finally, check all driver-assistance systems (lane keep assist, adaptive cruise, parking sensors) function, as these are costly to recalibrate if faulty.