MERCEDES-BENZ (W126) 420 SEC
Lowest Price: £3,800 • Median Price: £10,280 • Highest Price: £26,667 • Sell-Through Rate: 44%
Image Source: Barons
£3,800
LOWEST PRICE:
SINCE 2020
£10,280
MEDIAN PRICE:
SINCE 2020
HIGHEST PRICE:
£26,667
SINCE 2020
NUMBER OF SOLD CARS:
14
ALL TIME
SELL THROUGH RATE:
44%
ALL TIME
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THE PRICE TREND
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HOW MANY REMAIN
See how many Mercedes-Benz (W126) 420 SEC remain on UK roads
CARS
LICENSED
61
CARS
SORN
151
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THE SALES
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Anglia Car Auctions
Not Sold
1st Feb 2026
1989 MERCEDES 420 SEC W126 AUTO
Iconic Auctioneers
£26,667
24th Aug 2024
1989 Mercedes-Benz 420 SEC (W126)
Brightwells
£8,960
25th Oct 2023
1989 Mercedes-Benz 420 SEC (C126)
Mathewsons
£11,600
26th Jun 2025
1989 MERCEDES 420 SEC AUTO
Bonhams Cars Online
Not Sold
15th Feb 2024
1986 Mercedes-Benz 420 SEC
Barons
Not Sold
30th Sep 2023
1987 Mercedes-Benz W126 420 SEC
Historics
£22,308
3rd May 2025
1990 Mercedes-Benz 420 SEC 39,176 miles from new & owned for over 30 y...
Barons
£6,720
10th Feb 2024
1987 Mercedes-Benz W126 420 SEC - Sold
Barons
Not Sold
26th Aug 2023
1987 Mercedes-Benz W126 420 SEC
Brightwells
£3,800
4th Dec 2024
1991 Mercedes-Benz 420 SEC Coupe (W126)
Barons
Not Sold
28th Oct 2023
1987 Mercedes-Benz W126 420 SEC
Collecting Cars
£12,412
25th Aug 2023
1988 MERCEDES-BENZ (W126) 420 SEC
THE FAQs
The frequently asked questions about this model
Tell Me More
The Mercedes-Benz 420 SEC, part of the W126 series, debuted in 1985. It was known for its luxurious features and elegant coupe design.
Its successor was the Mercedes-Benz CL-Class (C140).
Did you know that the W126 series, including the 420 SEC, was rumored to have been styled with significant input from Bruno Sacco, Mercedes-Benz's head of design at the time, who aimed to create a timeless and aerodynamically efficient design?
How much is a Mercedes-Benz (W126) 420 SEC worth?
In average condition, a Mercedes-Benz (W126) 420 SEC is worth £10,280.
What is the most expensive Mercedes-Benz (W126) 420 SEC to sell in history publicly?
The most expensive Mercedes-Benz (W126) 420 SEC to sell in history was sold for £31,725.
What is the cheapest Mercedes-Benz (W126) 420 SEC to sell in history publicly?
The cheapest Mercedes-Benz (W126) 420 SEC to sell in history was sold for £3,600.
When was the Mercedes-Benz (W126) 420 SEC produced?
The Mercedes-Benz (W126) 420 SEC was produced between 1986 and 1991.