2020 Mercedes-Benz C Class — £29,999 Listing Review

Reviewed by Car-Search.ai | 16 April 2026 | Trebrown, Liskeard
£29,999
35,000 miles | Petrol | Automatic | Convertible
Listing Quality
50/100
Average
vs Market Average
+66%
Above Market
Value Retention
80/100
Holding Value
Our Verdict
50 /100

This 2020 Mercedes-Benz C Class is listed at £29,999 by Castle Motors in Trebrown. It has 35,000 miles on the clock. At 66% above the market average of £18,120, this is priced on the higher side compared to 23 similar listings. Our depreciation analysis shows this vehicle is losing approximately £309/year in value. The listing quality is average — it could benefit from more photos or detailed specifications.

Year 2020
Make Mercedes-Benz
Model C Class
Body Style Convertible
Colour Silver
Fuel Type Petrol
Gearbox Automatic
Mileage 35,000 miles
Engine 3L
Doors 2
Seats 5
CO2 170 g/km
Euro Status Euro 6
ULEZ Compliant Yes
Road Tax £620/yr
Monthly Payment £578.7/mo
Highlights
Facelift Model 385bhp 4Matic Edition PremiumTwin wide screen displays19 inch AMG WheelsPreviously supplied by ourselves
All Features & Equipment (85)
Facelift Model 385bhp 4Matic Edition PremiumTwin wide screen displays19 inch AMG WheelsPreviously supplied by ourselves 12.3in Digital Instrument Display19in Alloy Wheels - AMG Multi-Spoke Design - Painted BlackABS - Anti-Lock Braking SystemActive Bonnet - Pedestrian Safety Measure which Detects an Impact and Raises BonnetActive Parking Assist including PARKTRONICAdaptive Brake Assist with Hold Function and Brake Drying FunctionAdaptive Brake LampsAlarm System with Immobiliser and Interior ProtectionAmbient Lighting - 64 ColoursAMG Bodystyling - Front and Rear Apron and Side SkirtsAMG Boot Lid Spoiler in Body ColourAMG Boot Logo in Central ScreenAMG Ride Control Sports SuspensionARTICO Leather Dashboard with Red Contrast StitchingATTENTION AssistAutomatic Child Seat Recognition SensorAutomatically Dimming Rear View Mirror and Drivers Door MirrorBITURBO 4MATIC Lettering on Front WingsBlack Mirror HousingsBrake Calipers with AMG LetteringCentral Locking with Interior Switch - Automatic Locking and Crash Sensor with Emergency Opening FunctionChildproof Locks - Manually Operated for Rear Doors and Electrically Operated for Rear Power WindowsCollision Prevention Assist PlusCOMAND Online SystemDAB Digital Radio TunerDoor Mirrors - Electrically Adjustable and HeatedDual-Stage Airbags - Driver and Front Passenger - Sidebags in Front Seats - Driver Kneebag - Pelvis Bag and Windowbags for Driver - Front Passenger and Rear PassengersDynamic Select with a Choice of Driving Modes - Comfort - ECO - Sport - Sport Plus - IndividualElectric Parking BrakeElectric Windows - 4 - With One-Touch Opening and Closing - including Obstruction SensorsElectronic Key - Chrome SurroundESP - Electronic Stability ProgrammeFirst Aid Kit and Warning TriangleFloor Mats - Black with AMG Lettering and Red PipingFront Centre Armrest with Stowage CompartmentFront Door Sill Panels with AMG LetteringFront Seats - Electrical Height and Backrest Adjustment and Four-Way Lumbar AdjustmentFull LED Tail LightsGearshift Paddle on Steering WheelHeated Front SeatsHigh-Resolution 10.25in Multimedia Colour DisplayIlluminated Glove CompartmentInterior Lighting PackageISOFIX Child Seat Attachment Points with Top Tether in RearMemory PackageMercedes Me Connect - Vehicle Set-Up and Vehicle MonitoringMidline Sound SystemMirror PackageMULTIBEAM LED HeadlightsOutside Temperature DisplayRadiator Grille - AMG Design with Double Louvre in Matt Iridium Silver and AMG LetteringRadio Aerial Integrated into Rear WindowRain Sensing Windscreen WipersRemote Boot ReleaseReversing CameraSeat Belts - RedSeats - Rear Split Folding 40-20-40Seats - Sports with Optimised Lateral SupportService Indicator ASSYSTSmartphone IntegrationSpeakers with FrontBassSPEEDTRONIC Cruise Control and Variable Speed LimiterSports Exhaust SystemSports Pedals in Brushed Stainless Steel with Rubber StudsStatus Display for Rear Seat Belts in Instrument ClusterSteering - AMG 2 Stage Speed-Sensitive Sports SteeringSteering Column - Manually Adjustable for Height and ReachSteering Wheel - Multi-Function with Audio and Onboard Settings ControlSteering Wheel - Multifunction Sports in Black Nappa Leather with Flattened Bottom SectionStowage - Double Cup Holder in Centre ConsoleStowage PackageSun Visors with Illuminated Vanity MirrorsTHERMATIC - Automatic Climate Control - Two-ZoneTinted Glass All Round - GreenTop Surround of Side Windows in Matt BlackTrim - Black Open Pore AshTwo Tailpipe Trim Elements in Twin-Tailpipe Design Integrated into Rear BumperTwo USB Ports and an SD Card Slot in Centre ConsoleTyre Pressure Monitoring SystemWireless Charging Surface integrated into Quick Stowage Tray in Front of Centre Console
Above MarketListed at £29,999 vs market average of £18,120 (+66%)
Market Low
£14,400
Market Average
£18,120
Market High
£21,995
Comparables
23 listings

Based on 23 comparable Mercedes-Benz C Class listings.

Age Depreciation
Holding Value
£441/year
Mileage Impact
Slight Appreciation
£66/5k mi
Combined (10k mi/yr)
Holding Value
£309/yr
This Vehicle vs Model
Age-predicted: £17,438 (+£12,561)
Mileage-predicted: £19,464 (+£10,535)
Scenarios: 5k mi/yr £-375/yr | 10k mi/yr £-309/yr | 15k mi/yr £-242/yr

Based on 84 comparable listings. Slopes from smoothed depreciation curves.

50
Overall Listing Quality
Average — some areas could be improved.
Information & Buyer Appeal
Does this listing give buyers enough information to make a decision?
25/25Good
Photos
43 photos
10/10
Features & key selling points
85 listed
8/8
Technical specifications
9 specs provided
7/7
Competitiveness
How well does this listing compete against similar vehicles for buyer attention?
25/25Good
Clear pricing
£29,999
8/8
Monthly payment shown
£578.7/mo
4/4
Visual presentation
43 photos
5/5
Key selling points
85 features highlighted
4/4
Detailed specifications
9 specs provided
4/4
SEO Quality
Page HTML not captured — scores are estimated
0/25Poor
Page HTML
Not captured — cannot analyze
0/25
AI Discoverability
How findable is this listing by ChatGPT, Perplexity, Gemini, and other AI search engines?
0/25Poor
Page HTML
Not captured — cannot analyze
0/25
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 Castle Motors →

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About the Dealer

Castle Motors

Trebrown, Liskeard PL14 3PX