2019-2023 BMW 3 Series (G20)
The G20 3 Series is the default choice for European buyers who want a genuinely engaging used saloon without stepping up to a still-pricey 5 Series. It has depreciated enough that a clean 320d now sits within reach of buyers cross-shopping a loaded Octavia, and the diesel's effortless motorway pace and 50-plus-mpg economy explain why it remains the volume seller on AutoScout24 and mobile.de. The honest counterweight is the cost of German ownership out of warranty: tyres, brakes, and any electronics fault all run higher than the mainstream cars on this list, so the smart buy is a 2020-2023 example with documented BMW service history and, ideally, time left on cover. Petrol 320i and the brisk M340i hold value firmer than the four-cylinder diesel, which softens most through winter. Buy on history, not on price alone.
We're recording real prices daily — the Buy-timing Score turns on once enough history accrues.
- Best-in-class handling and steering feel
- Strong depreciation makes the used buy attainable
- 320d offers effortless motorway economy
- Premium, solidly built interior
- High out-of-warranty repair and tyre costs
- Run-flat tyres firm up the ride
- Diesels face urban low-emission-zone limits
- 330e PHEV battery health needs checking
We combine today's price position within this product's own 12-month range, its distance from the all-time low, and the recent trend. The score reflects price timing and is the same in every market; only the displayed prices and retailers change. We never accept payment to change a score. Read the full methodology →