Ranked #216 car in the UK · Saloon · 14 units sold last year
The Audi S8 is the discreet super-saloon flagship - a 500-plus-bhp twin-turbo V8 hidden inside the understated luxury of the A8, with mild-hybrid assistance, quattro and air suspension. It's the ultimate Q-car: limousine comfort and a hushed cabin with genuine supercar-baiting pace, all without drawing attention. As a used buy it's a sledgehammer in a tailored suit - immense, refined and rapid, bought on impeccable history given the complexity and running costs.
combined
The short version
Forecourt score
Value 32 · Reliability 31 · Insurance 16
The Audi S8 loses value faster than most cars and is dearer to run than most. Its MOT-based reliability is average, 69 out of 100, ahead of 31% of the cars we track. On three-year value retention it ranks better than 32% of models.
The Forecourt score blends how this car ranks against the catalogue on value retention, reliability and insurance cost (weighted 40/40/20). Higher is better; running cost is not yet folded in.
Estimates are tuned to the version you choose.
Fuel
Mild Hybrid · 3996cc
Power
571 ps
Drivetrain
AWD
Cam drive
Chain
Quoted MPG
27 mpg
S8 is petrol-only V8 — 4.0 twin-turbo mHEV, 571 PS, quattro AWD. 3.8s 0-62. Halo A8 spec.
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.£64,350
Range £53,700 – £75,650
medium confidence
Fair value — the 4-year mark is the sweet spot.
At 28,704 miles it’s about the ~32,177 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 Audi S8 loses value over time.
Based on the 2023 car with 28,704 miles you entered above — worth about £64,350 today — here is the cost of owning it for the next 5 years, at roughly 9,568 miles a year.
5-year total
£31,304
Per year
£6,261
All-in per mile
£0.65
Fuel per mile
27.9p
If a company carAround £1,480/mo Benefit-in-Kind tax at the 40% rate (£740/mo at 20%) — 37% band
If you're a company-car driver
At 37% BIK, a 40% taxpayer would pay about £1480/month in company-car tax (£740/month at 20%) — on top of the running costs above. Full BIK table below for context.
Best age to buy — around 5 years
A 5-year-old example loses roughly £3,850 a year — under half the £16,500 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.
The default choice: lowest purchase price and easy upkeep, at the cost of higher fuel bills than a hybrid.
Watch for
Makes sense for high motorway mileage; less so for short urban hops, where the DPF struggles.
Watch for
Fuel/energy costs based on this week’s UK averages (w/c 22/06/2026) · Petrol 153.3p/L, Diesel 172.5p/L, Electricity 27.0p/kWh · DESNZ
Group 32 of 50 (upper-mid — pricier to insure) · 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
£1,432/ year
Roughly £119 per month
Typical
Average UK driver — 3 years NCB, average postcode, no recent claims.| Age band | Lower risk | Typical | Higher risk |
|---|---|---|---|
| Age 17-25 | £3,265 | £4,081 | £5,306 |
| Age 26-32 | £1,704 | £2,005 | £2,446 |
| Age 33-39Selected | £1,260 | £1,432 | £1,690 |
| Age 40-49 | £1,070 | £1,189 | £1,379 |
| Age 50+ | £954 | £1,060 | £1,250 |
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
£290
Annual main-dealer service
Major service
£280
Every 2 years, annualised
Road tax
£195
Standard rate, post year-one
Fuel
£2,400
25 mpg, £1.49/L
Insurance
£1,432
Age 33-39, group 44
Clean-air zones
⚠ Depends on variantBased 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
£120
per year · low risk
30-60k miles
£360
per year · low risk
60-100k miles
£780
per year · medium risk
100k+ miles
£1,350
per year · high risk
205/60 R16 · 225/50 R17 · 245/40 R18
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
£300
set of 4, fitted · £60 per tyre
Mid-range
£440
set of 4, fitted · £95 per tyre
Premium
£620
set of 4, fitted · £140 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% |
Adaptive / matrix LED headlights | £900 | £400 | 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% |
Advanced driver-assistance pack | £1,500 | £450 | 30% |
Larger alloy wheels | £700 | £200 | 29% |
Premium sound system | £800 | £200 | 25% |
Drawn from owner reports and warranty data. Filtered for relevance to 28,704 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 5.7% of MOT tests under 30k miles — from 6,390 DVSA MOT tests analysed.
Recorded in 7.5% of MOT tests over 100k miles — from 6,390 DVSA MOT tests analysed.
Recorded in 7.8% of MOT tests over 100k miles — from 6,390 DVSA MOT tests analysed.
Recorded in 5.4% of MOT tests over 100k miles — from 6,390 DVSA MOT tests analysed.
Recorded in 3.1% of MOT tests over 100k miles — from 6,390 DVSA MOT tests analysed.
Recorded in 1.8% of MOT tests over 100k miles — from 6,390 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 6,498 real DVSA test records.
MOT pass rate by age
A 3-year-old S8 passes its MOT 87.8% of the time; by 25 years that has slipped to 77.3%. The y-axis is zoomed to this model’s range so the trend is readable.
Longevity
From 61 vehicles registered in 1998.
Survival by registration year
Each point is one registration cohort. Older cars on the left, newer on the right. A flatter line means the model holds up over time; a steep drop means cohorts disappear from UK roads faster.
What’s on the road
The fuel-type split of every S8 currently MOT’d in the UK. From 780 vehicles.
Common MOT failures by mileage
The defect categories this S8 fails on most often, and how the failure rate climbs as the miles add up — from the same DVSA test records.
| Category | 0-30k | 30-60k | 60-100k | 100k+ |
|---|---|---|---|---|
| Tyres & wheels | 6% | 6% | 5% | 5% |
| Brakes | 1% | 2% | 5% | 8% |
| Suspension | — | 2% | 5% | 8% |
| Lighting & signalling | 1% | 2% | 3% | 5% |
| Driver's view | — | 1% | 2% | 3% |
| Identification & other | 1% | 1% | 2% | 2% |
Share of MOT tests in each mileage band with at least one defect in that category. The peak band for each is highlighted.
Typical mileage by age
The average odometer reading for a S8 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 with at least 10 tests shown).
Average
Composite of MOT pass rate, defect prevalence and cohort survival from 6,390 tests — high confidence.
MOT outlook · age 5 years
40th percentile — Below catalogue average
Based on 386 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 Audi S8, 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
Higher-value cars like this are relay-theft targets — keyless entry can be exploited from the driveway in under a minute.
Parts theft
Higher
Hybrid versions are a catalytic-converter target — a hybrid cat is rich in precious metals and can be cut out in about a minute.
Worth doing
Whether driving a Audi S8 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 Hybrid petrol engines from 2006 meet Euro 4. |
| Birmingham | Inside the A4540 Middleway | £8.00 | Likely exempt Hybrid petrol engines from 2006 meet Euro 4. |
| Bristol | City centre and part of the Portway | £9.00 | Likely exempt Hybrid petrol engines from 2006 meet Euro 4. |
| Glasgow | City centre | — | Likely exempt Hybrid petrol engines from 2006 meet Euro 4. |
| Edinburgh | City centre | — | Likely exempt Hybrid petrol engines from 2006 meet Euro 4. |
| Aberdeen | City centre | — | Likely exempt Hybrid petrol engines from 2006 meet Euro 4. |
| Dundee | City centre | — | Likely exempt Hybrid petrol engines from 2006 meet 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.
What HMRC's Benefit-in-Kind charge looks like if you ran this Audi S8 as a company car, by tax year and income-tax band. Calculated from a CO₂ of 261 g/km, using £120,000 as the P11D value.
| Tax year | BIK % | Tax @ 20% | Tax @ 40% | Monthly @ 20% | Monthly @ 40% |
|---|---|---|---|---|---|
| 2025-26 | 37% | £8,880 | £17,760 | £740 | £1,480 |
| 2026-27 | 37% | £8,880 | £17,760 | £740 | £1,480 |
| 2027-28 | 38% | £9,120 | £18,240 | £760 | £1,520 |
| 2028-29 | 39% | £9,360 | £18,720 | £780 | £1,560 |
| 2029-30 | 39% | £9,360 | £18,720 | £780 | £1,560 |
P11D value is approximated from the latest new price; the exact figure on your tax code will depend on options fitted. The 4% diesel surcharge applies only to non-RDE2 (pre-2021) diesels — we assume RDE2 compliance for current models. Bands and rates from HMRC's Autumn Budget 2024 confirmation through 2029/30.
How well-supported Audi is across the UK — a practical read on how easy servicing, parts and warranty work will be to find.
Franchised UK dealers
~115
Large network
Premium mainstream
Network size relative to the UK's largest (Audi is 2.6% of all franchised outlets)
Servicing, parts and warranty work are easy to find UK-wide, and most independent garages know the brand well — which keeps maintenance competitive.
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.
Length
4,700 mm
Width
1,840 mm
Height
1,450 mm
Kerb weight
1,550 kg
Boot
460–480 L
Fuel tank
48 L
Of every Audi S8 ever registered in the UK, this is what's actively on the road, parked off the road on a SORN, or gone for good.
Total ever registered
1,389
Currently taxed & on road
954
69% of all registered
SORN (off road)
417
30% of all registered
Scrapped or exported
18
UK fleet trend — 2014 to 2025
-1.8% vs 2024Source: DfT VEH0124 vehicle licensing statistics (year-end 2025) · Updated 1 Jul 2026
Common questions
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.
