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The Headlines
The Filters
The Price Trend
TCV Score
How Many Remain
People Also Viewed
The Sales
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MERCEDES-BENZ (W126) 420 SEC

Lowest Price: £3,800 • Median Price: £10,280 • Highest Price: £26,667 • Sell-Through Rate: 45%

Mercedes-Benz (W126) 420 SEC

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:

45%

ALL TIME

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THE PRICE TREND

See how the price for this model has varied since records began

A dot is a sale. The blue line is the trend line. The sliders adjust the axis

TCV SCORE

See how this vehicle scores based on reviews from our 250,000+ community 

TCV SCORE

OUT OF 100

00

STYLING

COOL FACTOR

PRACTICALITY

HANDLING

SPEED

HOW MANY REMAIN

See how many Mercedes-Benz (W126) 420 SEC remain on UK roads

CARS

LICENSED

61

CARS

SORN

151

Find Out More >

PEOPLE ALSO VIEWED

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CL 500

Mercedes-Benz

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£12,608

(W126) 500 SEC

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RELATED MODELS

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MODEL

NUMBER SOLD

MEDIAN PRICE

LINK

Mercedes-Benz (W126) 420 SEC

14

£10,280

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THE SALES

See recent matching listings to your search

Mathewsons

1989 MERCEDES 420 SEC AUTO

£11,600

26th Jun 2025

1989 MERCEDES 420 SEC AUTO

Bonhams Cars Online

1986 Mercedes-Benz 420 SEC

Not Sold

15th Feb 2024

1986 Mercedes-Benz 420 SEC

Barons

1987 Mercedes-Benz W126 420 SEC

Not Sold

30th Sep 2023

1987 Mercedes-Benz W126 420 SEC

Historics

1990 Mercedes-Benz 420 SEC 39,176 miles from new & owned for over 30 y...

£22,308

3rd May 2025

1990 Mercedes-Benz 420 SEC 39,176 miles from new & owned for over 30 y...

Barons

1987 Mercedes-Benz W126 420 SEC - Sold

£6,720

10th Feb 2024

1987 Mercedes-Benz W126 420 SEC - Sold

Barons

1987 Mercedes-Benz W126 420 SEC

Not Sold

26th Aug 2023

1987 Mercedes-Benz W126 420 SEC

Brightwells

1991 Mercedes-Benz 420 SEC Coupe (W126)

£3,800

4th Dec 2024

1991 Mercedes-Benz 420 SEC Coupe (W126)

Barons

1987 Mercedes-Benz W126 420 SEC

Not Sold

28th Oct 2023

1987 Mercedes-Benz W126 420 SEC

Collecting Cars

1988 MERCEDES-BENZ (W126) 420 SEC

£12,412

25th Aug 2023

1988 MERCEDES-BENZ (W126) 420 SEC

Iconic Auctioneers

1989 Mercedes-Benz 420 SEC (W126)

£26,667

24th Aug 2024

1989 Mercedes-Benz 420 SEC (W126)

Brightwells

1989 Mercedes-Benz 420 SEC (C126)

£8,960

25th Oct 2023

1989 Mercedes-Benz 420 SEC (C126)

Manor Park

1986 Mercedes-Benz 420 SEC Only one former keeper

Not Sold

22nd Jul 2023

1986 Mercedes-Benz 420 SEC Only one former keeper

EXPLORE MORE

See other models from this make

Mercedes-Benz (W126) 420 SEC

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.

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