Ranked #235 car in the UK · SUV · 323 units sold last year
The Aston Martin DBX is the brand's first SUV - the car that secured Aston's finances, pairing a Mercedes-AMG-sourced twin-turbo V8 with genuine pace, a luxurious hand-trimmed cabin and surprising agility for its size. The hotter DBX707 is one of the fastest SUVs made. As a used buy it offers exotic-badge presence and real performance in a usable five-seat package, with the usual hand-built exclusivity and high running costs to factor in.
How these figures are sourced — the valuation is anchored to a researched used-market price for this model (AutoTrader median, 2023 at 30k miles). Reliability, mileage and variant data are real DVSA MOT records. Dimensions, tyre sizes and costs, servicing figures and the insurance group are segment-level estimates rather than sourced per car, and are being replaced model by model.
combined
The short version
Forecourt score
Value 85 · Reliability 95 · catalogue percentiles
The Aston Martin DBX holds its value well. Its MOT-based reliability is excellent — an MOT score of 92/100, ahead of 98% of the cars we track. On three-year value retention it ranks better than 85% of models.
The Forecourt score blends how this car ranks against the catalogue on value retention, reliability and insurance cost (weighted 40/40/20) — the from-new ownership picture. Higher is better; running cost is not yet folded in.
Estimates are tuned to the version you choose.
Fuel
Petrol · 3982cc
Power
707 ps
Drivetrain
AWD
Cam drive
Chain
Quoted MPG
20 mpg
The volume DBX. 4.0L V8 twin-turbo (Mercedes-AMG sourced), 707 PS, 9-speed auto, AWD. 3.3s 0-62. £200k+ OTR. 707 in the name refers to PS metric. The Aston SUV that earns its badge — most powerful production SUV V8.
Tidy and well looked-after for its age — the typical car.
Remembered as you browse other cars.
Optional — fills in the exact year and ULEZ status for your specific car. The registration isn’t stored.
Estimated market value
How we got this number — click for the breakdown, or to challenge it.£120,950
Range £99,850 – £143,350
medium confidence
Past the steep drop — most of the depreciation is behind it.
At 21,021 miles it’s about the ~20,391 typical for a 3-year-old.
Seen one for sale?
A data-led guide from the depreciation curve, UK parc trend and reliability — not financial advice.
How a 2023-registration Aston Martin DBX loses value over time.
Based on the 2023 car with 21,021 miles you entered above — worth about £120,950 today — here is the cost of owning it for the next 5 years, at roughly 7,007 miles a year.
5-year total
£15,439
Per year
£3,088
All-in per mile
£0.44
Fuel per mile
18.2p
Best age to buy — around 2 years
A 2-year-old example loses roughly £17,200 a year — 66% less than the £49,900 a one-year-old sheds. The steepest drop is behind it.
Uses current UK pump and home-charging prices (DESNZ weekly), typical-driver insurance and manufacturer service intervals. "Fuel per mile" is just the energy input — so an EV at ~9p and a diesel at ~22p make running-cost comparison direct. A guide; your own costs will vary.
Where this car ranks against the 340 vehicles in our index — higher is better.
Percentile rank across our full index. A measure is shown only where the data spreads meaningfully across the index.
How the available versions compare on price, running cost, and the headaches each tends to develop.
Aston's first SUV. Most powerful production SUV V8. Cross-shop Lamborghini Urus Performante, Porsche Cayenne Turbo GT, Bentley Bentayga Speed. Built at Aston Martin's St Athan factory in Wales — proud UK manufacturing.
Watch for
Fuel/energy costs based on this week’s UK averages (w/c 03/08/2026) · Petrol 159.9p/L, Diesel 179.2p/L, Electricity 27.0p/kWh · DESNZ
Group 22 of 50 (mid — around the UK average) · Comprehensive · 3 years NCB
Indicative annual comprehensive premiums for this car, by driver age band and risk profile. Pick the combination closest to your circumstances.
Estimated annual premium · typical, age 33-39
£721/ year
Roughly £60 per month
Typical
Average UK driver — 3 years NCB, average postcode, no recent claims.| Age band | Lower risk | Typical | Higher risk |
|---|---|---|---|
| Age 17-25 | £1,643 | £2,053 | £2,669 |
| Age 26-32 | £857 | £1,009 | £1,231 |
| Age 33-39Selected | £634 | £721 | £850 |
| Age 40-49 | £538 | £598 | £694 |
| Age 50+ | £480 | £533 | £629 |
How we estimate this
Indicative annual comprehensive premium estimates. The 'Typical' figure represents an average UK driver in each age band; Lower and Higher risk show the realistic spread driven by factors UK insurers legitimately price on (postcode, occupation, claims history, NCB, voluntary excess, modifications). Based on 10,000 miles/yr, £250 voluntary excess, and the no-claims bonus selected above. Always get individual quotes before buying.
Adjust the annual mileage to match how you'll actually use the car. Insurance is what you selected above (age 33-39, typical risk, 3 yrs NCB).
Routine service
£185
Annual main-dealer service
Major service
£210
Every 2 years, annualised
Road tax
£200
Standard rate, post year-one
Fuel
£2,547
20 mpg, £1.60/L
Insurance
£721
Age 33-39, group 22
Clean-air zones
✓ ULEZ compliantBased on London ULEZ standards — Birmingham, Bath, Bristol, Sheffield, Glasgow and other UK clean-air zones generally follow the same rules.
Excludes depreciation and unscheduled repairs (see next section).
What out-of-warranty repairs typically run, by mileage band. Your selected mileage is highlighted.
0-30k miles
£80
per year · low risk
30-60k miles
£240
per year · low risk
60-100k miles
£520
per year · medium risk
100k+ miles
£900
per year · high risk
215/65 R17 · 235/55 R18 · 235/50 R19
What a full set of four will cost you (including fit and balance), and which brand each tier of buyer should pick. A typical set lasts about 24,000 miles.
Budget
£400
set of 4, fitted · £85 per tyre
Mid-range
£580
set of 4, fitted · £130 per tyre
Premium
£840
set of 4, fitted · £195 per tyre
Factory options ranked by how much of their original cost they recover at resale. Anything above 70% return tends to make money back; below 40% is paying for your own enjoyment.
| Option | New cost | Added used value | Return |
|---|---|---|---|
Tow bar (factory-fit) Niche, but the buyers who want one will pay for it. | £650 | £450 | 69% |
Parking sensors & reversing camera Near-expected now — its absence costs more than its presence returns. | £500 | £300 | 60% |
Heated seats / cold-weather pack | £450 | £200 | 44% |
Metallic or premium paint Almost universal — an unusual colour is the bigger resale risk. | £600 | £200 | 33% |
Panoramic / opening roof | £1,100 | £350 | 32% |
Larger alloy wheels | £700 | £200 | 29% |
Drawn from owner reports and warranty data. Filtered for relevance to 21,021 miles.
Watch now
Failure typically happens around your current mileage.
Upcoming
A known weak point — but you haven't reached its usual mileage yet.
Already due
Past its usual failure mileage. Either already fixed, or about to.
Recorded in 8.3% of MOT tests over 100k miles — from 3,217 DVSA MOT tests analysed.
Recorded in 4.7% of MOT tests 30k-60k miles — from 3,217 DVSA MOT tests analysed.
Recorded in 0.7% of MOT tests 30k-60k miles — from 3,217 DVSA MOT tests analysed.
Recorded in 0.7% of MOT tests 30k-60k miles — from 3,217 DVSA MOT tests analysed.
Recorded in 0.6% of MOT tests 30k-60k miles — from 3,217 DVSA MOT tests analysed.
Recorded in 0.2% of MOT tests under 30k miles — from 3,217 DVSA MOT tests analysed.
"Parts low/medium/high" indicates how easy the replacement part is to source — discontinued or specialist parts mean longer workshop time and bigger bills.
How this model fares at its MOT as it ages — from 3,471 real DVSA test records.
MOT pass rate by age
A 3-year-old DBX passes its MOT 94.3% of the time; by 6 years that has risen to 97%. The y-axis is zoomed to this model’s range so the trend is readable.
Longevity
Not enough older examples yet to gauge longevity.
What fails at the first MOT
The defect categories a DBX registered 2020–2023 fails on at its first MOT, from 1,104 first tests. Every car here is the same age and the same generation, so these are the faults that show up first - not the wear a high-mileage older example collects.
Share of first MOT tests recording at least one defect in that category. DVSA test-item categories, not parts: “Driver’s view” covers mirrors, wipers and glass.
Typical mileage by age
The average odometer reading for a DBX at MOT, by age — measured from the same DVSA records, not assumed. A useful yardstick for whether a given car has done more or fewer miles than its age suggests.
Mean recorded mileage at MOT by vehicle age, from DVSA test records. Ages below three are not shown: the first MOT is due at three years, so the few cars tested earlier are a self-selected minority rather than a representative sample. Ages with at least 10 tests shown.
Excellent
First-MOT pass rate and defect rate for cars registered 2020 onward (1,104 first tests), with cohort survival — medium confidence.
MOT outlook · age 5 years
98th percentile — Among the best in the catalogue
Based on 334 MOT tests · ranked against 248 catalogue models with comparable data
Where this car sits in the catalogue
Pass-rate distribution across 248 catalogue models
Safety recalls
Manufacturers occasionally issue safety recalls to fix a fault free of charge. You can check whether the Aston Martin DBX, or your exact vehicle, has any outstanding recalls on the official DVSA service.
Check on GOV.UKOpens the Driver & Vehicle Standards Agency recall checker. Choose the make, model and year of manufacture — no registration needed.
A general indicator from UK 2025 theft data and this car’s characteristics — not a prediction for any one vehicle.
Whole-car theft
Higher
Desirable SUVs like this are relay-theft targets — keyless entry can be exploited from the driveway in under a minute.
Parts theft
Around average
Parts-theft risk is around average — catalytic-converter theft is the main thing to be aware of on any petrol or diesel car.
Worth doing
Whether driving a Aston Martin DBX into a UK clean-air zone will cost you anything. Rules use the same Euro standard across most zones — petrol from 2006 and diesel from 2015 onwards are exempt; pure electric is always exempt.
| City | Area | Daily charge | Likely outcome |
|---|---|---|---|
| London | All of Greater London (within the M25) | £12.50 | Likely exempt Petrol from 2006 meets Euro 4. |
| Birmingham | Inside the A4540 Middleway | £8.00 | Likely exempt Petrol from 2006 meets Euro 4. |
| Bristol | City centre and part of the Portway | £9.00 | Likely exempt Petrol from 2006 meets Euro 4. |
| Glasgow | City centre | — | Likely exempt Petrol from 2006 meets Euro 4. |
| Edinburgh | City centre | — | Likely exempt Petrol from 2006 meets Euro 4. |
| Aberdeen | City centre | — | Likely exempt Petrol from 2006 meets Euro 4. |
| Dundee | City centre | — | Likely exempt Petrol from 2006 meets Euro 4. |
Model-level guidance only. To check a specific registration, use the official gov.uk clean-air zone checker. Zone charges and boundaries are set by local councils and change over time.
How well-supported Aston Martin is across the UK — a practical read on how easy servicing, parts and warranty work will be to find.
Franchised UK dealers
~20
Very few outlets
Luxury sports
Network size relative to the UK's largest (Aston Martin is 0.4% of all franchised outlets)
Very few franchised outlets — main-dealer servicing means travelling to one of a handful of locations, so budget for that.
For context, the UK has roughly 4,500 franchised car-dealer outlets in total, plus about 15,500 independent garages.
Approximate figures, curated from public UK industry sources (NFDA, Car Dealer Magazine). Franchised networks shrink year on year — these indicate network size, not an exact count.
These are segment estimates, not manufacturer figures. 296 of 325 catalogued cars share one of 14 identical dimension sets, so they describe a class rather than this particular car. Sourced figures replace them model by model.
Length
4,600 mm
Width
1,880 mm
Height
1,650 mm
Kerb weight
1,750 kg
Boot
500–1,600 L
Fuel tank
60 L
How the UK Aston Martin DBX fleet splits: taxed and on the road, parked off the road on a SORN, and gone from the register where that figure is available.
Currently registered
1,768
Currently taxed & on road
1,704
96% of all registered
SORN (off road)
64
4% of all registered
Scrapped or exported
n/a
not in this DfT extract
UK fleet trend — 2020 to 2025
+17.8% vs 2024Source: DfT VEH0124 vehicle licensing statistics (year-end 2025) · Updated 29 Jul 2026
Common questions
Answers are generated from this car's Forecourt data — DVSA MOT records, DfT licensing statistics and our valuation model — and update with the weekly data refresh.