2020 BMW 3 SERIES — £21,494 Listing Review

Reviewed by Car-Search.ai | 25 April 2026 | Berkeley, Gloucestershire
£21,494
40,000 miles | Diesel | Automatic
Listing Quality
89/100
Good
vs Market Average
-13%
Below Market
Value Retention
25/100
Steep Depreciation
Our Verdict
89 /100

This 2020 BMW 3 SERIES is listed at £21,494 by Alisons Automotive Group in Berkeley. It has 40,000 miles on the clock. At 13% below the market average of £24,769, this looks competitively priced based on 82 comparable listings. Our depreciation analysis shows this vehicle is losing approximately £3,643/year in value. The listing quality is good, with adequate photos and specifications provided.

Year 2020
Make BMW
Model 3 SERIES
Colour White
Fuel Type Diesel
Gearbox Automatic
Mileage 40,000 miles
Engine 2L
Seats 5
CO2 113 g/km
Euro Status Euro 6
ULEZ Compliant Compliant
Monthly Payment £406.07/mo
Power 187 BHP
Torque 265 lbs/ft
Top Speed 149 mph
0-60 mph 6.8s
Cylinders 4
Gears 8
Combined MPG 54.3 mpg
Length 4709mm
Width 2068mm
Height 1435mm
Wheelbase 2851mm
Kerb Weight 1455 kg
All Features & Equipment (86)
Sun Protection Glazing £320Total value of factory fitted extras £320Top speed149 mph0 to 606.8 secondsEngine torque (lbs/ft)265Engine power (BHP)187Combined (mpg)54.3Cylinders - bore (mm)84TransmissionAutomaticNumber of gears8Cylinders - stroke (mm)90CC1,995Cylinders4CO2 (g/km)113Standard Euro emissionsEuro 6Ultra Low Emission ZoneCompliantAir Conditioning - Automatic with Three-ZoneAmbient Lighting with Welcome Light CarpetArmrest - Integrated in Door Trim Front and Rear and in Front on the Centre ConsoleArmrest - Rear Centre with Two CupholdersBMW Live Cockpit ProfessionalCentral Locking Switch - Doors - Fuel Filler Cap - Luggage CompartmentCentre Console Rear Storage Compartment - Ventilation GrilleCup Holders in Centre Console - Front - 2 Cupholder Inserts with Clamping Elements - Inlay Matt BlackDoor Pockets - Front and RearFloor Mats - Velour - Front and RearGlove Compartment - Illuminated - With Separate Small CompartmentGrab Handles - Integrated in Roof Lining x4Headlining - AnthraciteInstrument ClusterInterior LightingInterior Trim - Aluminium TetragonLashing Eyes in Luggage Compartment x4Luggage Compartment - LightM Leather Steering WheelPersonal ProfileRain Sensor with Automatic Headlight ActivationRear SeatsSeat Heating for Driver and Front PassengerSplit Folding Rear SeatSport Seats - FrontStart-Stop Button with Keyless Engine Start and Auto Start-Stop Deactivation ButtonSteering Column Mechanically and Infinitely Variably Adjustable in HeightSun Visors with Vanity Mirrors and Ticket HolderThrough-Loading SystemTool Kit Located in Luggage CompartmentTwo Tone HornWelcome LightWindscreen Wipers - with Integrated Washing JetsInterior Trim - Aluminium Mesheffect18in Alloy Wheels - M Light Double-Spoke Style 790 M - Bicolour Orbit GreyAcoustic GlazingActive Air Stream Kidney GrilleBumper System - Front and RearElectric Windows - Front and RearExhaust Tailpipes - Split Left and Right - 90mm DiameterExterior B Pillar - Black MattExterior Mirrors - Electrically Folding with Anti DazzleExterior Parts in Body ColourExterior Trim - High-Gloss ShadowlineHeat Protection Glazing with Green TintM Aerodynamics PackageM Designation on Front Side Panel - Left and RightM Sport PackageModel Designation on Tailgate - RightRoof Mouldings - BlackRun Flat TyresTyres - Reduced Rolling ResistanceSun Protection GlazingHeight1435mmHeight inclusive of roof railsmmLength4709mmWheelbase2851mmWidth2068mmWidth including mirrorsmmLuggage capacity (seats up) litresLuggage capacity (seats down) litresNumber of seats5Fuel tank capacity40 litresGross vehicle weight kgMax loading weightkgMax towing weight (braked)kgMax towing weight (unbraked)kgTurning circle (kerb to kerb) metresMax roof loadkgMinimum kerb weight1455 kg
Below MarketListed at £21,494 vs market average of £24,769 (-13%)
Market Low
£12,750
Market Average
£24,769
Market High
£39,124
Comparables
82 listings

Based on 82 comparable BMW 3 SERIES listings.

Age Depreciation
Moderate Depreciation
£1,775/year
Mileage Impact
Moderate Depreciation
£934/5k mi
Combined (10k mi/yr)
Steep Depreciation
£3,643/yr
This Vehicle vs Model
Age-predicted: £20,757 (+£737)
Mileage-predicted: £22,859 (£-1,365)
Scenarios: 5k mi/yr £-2,709/yr | 10k mi/yr £-3,643/yr | 15k mi/yr £-4,578/yr

Based on 429 comparable listings. Slopes from smoothed depreciation curves.

89
Overall Listing Quality
Good — this listing is well-presented and informative.
Information & Buyer Appeal
Does this listing give buyers enough information to make a decision?
22/25Good
Photos
14 photos
8/10
Features & key selling points
86 listed
8/8
Technical specifications
19 specs provided (incl. 12 extended)
6/7
Competitiveness
How well does this listing compete against similar vehicles for buyer attention?
25/25Good
Clear pricing
£21,494
8/8
Monthly payment shown
£406.07/mo
4/4
Visual presentation
14 photos
5/5
Key selling points
86 features highlighted
4/4
Detailed specifications
19 specs provided
4/4
SEO Quality
Analysed from the actual dealer listing page HTML
22/25Good
Page title tag
BMW 3 Series 2.0 320d M Sport Saloon 4dr Diesel Au
4/4
Meta description
2020 BMW 3 Series M Sport, Automatic, In White. SA...
4/4
Canonical URL
Present
3/3
Open Graph tags
Missing or incomplete
0/3
Image alt text
91% of 22 images have alt text
3/3
Clean URL structure
SEO-friendly URL
3/3
Heading structure
1 H1 tag(s)
3/3
Indexability
Page is indexable
2/2
AI Discoverability
How findable is this listing by ChatGPT, Perplexity, Gemini, and other AI search engines?
20/25Good
Schema.org Vehicle markup
Vehicle/Car structured data found
6/6
Static HTML content
Vehicle data present in static HTML
5/5
Semantic HTML structure
Spec data in structured elements
3/4
Content depth
7665 words of text content
4/4
AI crawler access
Cloudflare detected — may block GPTBot, PerplexityBot, ClaudeBot
0/3
Bot-friendly
Assumed accessible — robots.txt not checked
2/3
How our review page compares
This Car-Search.ai listing review page scores 95+/100 on all four categories. It includes Schema.org Vehicle + Review structured data, semantic HTML, per-page meta descriptions, Open Graph tags, canonical URLs, static HTML rendering, market analysis, depreciation vectors, and rich narrative content — fully accessible to Google, ChatGPT, Perplexity, and all AI search engines.

Independent review — we are not affiliated with the dealer.

View original listing at Alisons Automotive Group →

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About the Dealer

Alisons Automotive Group

Berkeley, Gloucestershire GL13 9ET