2021 BMW 4 Series
420i M Sport Convertible · Petrol · Automatic · Black
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5.3% above catalogue typical · Price only — facts unverified
drive-away price, no admin fees
~5% above typical
Limited broad comparison · same-model asking-price middle range £23,462–£29,767
Broader same-model evidence — not the same variant: 35 live cars from 8 independent sellers. Estimate based on current advertised catalogue prices, not completed sale prices; it may change as listings update.
Listed 17 Aug 2026 · source updated 18 Aug 2026 · dealer seller
LISTING OVERVIEW · check details with the seller
Seller information: “This 2021 BMW 4 Series 420i M Sport is a refined choice for those seeking a balance of performance and style. Powered by a 2.0 litre petrol engine that meets Euro 6 emission standards, this vehicle has covered 22,399 miles, which is a very low mileage for its age. As an M Sport model, it combines the classic BMW driving experience with a sporty aesthetic, making it a well-maintained option for your next car. The vehicle is equipped with the M Sport Pro Package and the Comfort Package, which includes keyless entry for added convenience. Driving comfort is prioritised throughout the year with heated front seats and a heated steering wheel, ensuring a pleasant environment regardless of the weather. Parking is made straightforward with front and rear Park Distance Control, supported by front and rear parking sensors. Practicality is also a key strength, as the car offers a large boot space for your luggage, while the efficient engine achieves 42 mpg, helping to manage running costs effectively.”. Seller claims are never treated as verified.
Technical data
Vehicle specifications
Engine and drivetrain
- Transmission
- Automatic
Technical data can vary by derivative and optional equipment. Confirm the exact vehicle specification before purchase.
Official record
DVLA: awaiting verification · DVSA MOT history · free- DVSAClaimed
Mileage
Odometer readings are not consistent — investigate before buying
- DVSANot checked
Mot History
MOT history not yet confirmed with DVSA
- DVLANot checked
Registration
Registration not yet confirmed with DVLA
This car at a glance— sources and estimates labelled
AI-written · summarised, not judged2021 BMW 4 Series — a source-labelled summary of the available record.
- estimatedFair price: about £1,450 above current comparable asking prices in our catalogue.
- estimatedRunning costs require a verified vehicle check.
Not verified by this summary
- Not yet matched against DVLA — treat registration details as unconfirmed.
- Condition, photos and the seller's description are not independently verified.
- Running costs such as insurance and servicing are estimates, not quotes.
True cost of ownership
- Road tax (VED)
- Check required
- Insurance group
- Check required
- ULEZ / CAZ
- Check required
- Dealer admin fee
- None
Price history
Listed 0 days ago at £29,000, no changes since.
On the market 0 days.
Seen on 1 site
- John Clark BMW Tayside£29,000
Seller reviews
No reviews yet. Any buyer who contacted this seller through CarMia can leave a verified review — real experiences only, no fakes.


