This Mercedes SL500 auction result provided one of the most entertaining bidding battles of Anglia Car Auctions’ first Marketplace Classics sale.
The 1994 R129 arrived with an estimate of just £2,500 to £3,000.
Before the auctioneer had even properly opened the bidding to the room, internet bids had already pushed it beyond £4,000.
Then two people sitting in the auction hall decided they wanted it.
Really wanted it.
At one point, I genuinely wished I’d bought myself a coffee.
This was turning into a spectator sport.
This was the inaugural Marketplace Classics sale at Anglia Car Auctions.
It’s a new auction aimed at a slightly different part of the enthusiast-car market.
Modern classics.
Future classics.
Affordable enthusiast cars.
And the cars that may not have been considered traditional classics until relatively recently.
That’s an interesting area of the market.
The definition of a classic car never stands still.
Cars that were simply used cars 10 or 15 years ago are now becoming the machinery people remember from their youth.
And the R129 Mercedes SL fits that world rather well.
Even before the auction started, this one caught our attention.
The estimate was:
£2,500 to £3,000.
For a Mercedes-Benz SL500.
With a 5.0-litre V8.
That immediately sounds like an awful lot of car for the money.
Of course, an inexpensive old luxury car can also become a very expensive old luxury car remarkably quickly.
But that’s part of what makes cars like this so fascinating.
The original purchase price and the value decades later can become almost completely disconnected.
The R129 SL arrived in 1989 as the replacement for the enormously successful R107.
That was no small task.
The R107 had been in production for 18 years and had become one of the most recognisable Mercedes-Benz models ever built.
Its replacement therefore needed to feel like a significant step forward.
Mercedes delivered something that looked completely different while still being unmistakably an SL.
The R129 had clean, restrained styling and proportions that have arguably improved with age.
More importantly, underneath it was a thoroughly modern car for its time.
The R129 belongs to an era of Mercedes design that has developed an increasingly strong following.
It was created under the direction of Bruno Sacco, the legendary Mercedes-Benz design chief whose influence can be seen across some of the company’s most recognisable cars.
There are no unnecessary lines on an R129.
No enormous grille.
No complicated collection of styling tricks.
It is low, wide and remarkably simple.
More than three decades after this particular example was registered, the shape still looks elegant.
Perhaps that’s one of the first signs that a design has become a genuine classic.
The R129 was also packed with clever engineering.
One of its best-known features was the automatic roll-over bar behind the seats.
In normal use it sat neatly out of the way.
If the car’s systems detected an imminent roll-over, the bar could deploy extremely quickly to provide additional protection for the occupants.
It was exactly the sort of engineering showcase you’d expect from Mercedes at the time.
There were also seats incorporating their own seatbelt structure, another technically ambitious solution.
This wasn’t simply a glamorous convertible.
Mercedes had put a huge amount of thought into making it one.
The R129’s electrically operated soft-top was another impressive piece of engineering.
At the touch of a button, a complicated sequence of hydraulics, catches and moving panels transformed the car.
It looked effortless from the driver’s seat.
Behind the scenes, rather more was happening.
Anyone who has owned an older R129 will therefore understand why evidence of roof-system maintenance is worth seeing.
This particular car had an invoice for a new roof control unit fitted in September 2017.
It also came with its hardtop, giving the SL a very different character when fitted.
There were several engines available during the R129’s long production life.
But this was the one many buyers wanted.
The SL500.
Under the bonnet of this 1994 example sat Mercedes’ 4,973cc V8.
The R129 had originally worn the traditional Mercedes naming convention as the 500 SL, before becoming the SL500 when the company reorganised its model names in 1993.
Either way, the recipe was essentially irresistible.
Big V8 up front.
Rear-wheel drive.
Automatic gearbox.
Two seats.
And the ability to cross enormous distances without feeling remotely stressed.
That’s an important distinction.
An SL500 isn’t a lightweight roadster.
It isn’t trying to behave like an MX-5 or an Elise.
The SL has always occupied its own space.
It’s a grand tourer.
A car designed to cover ground quickly and comfortably, with the roof down when the weather cooperates.
And in 5.0-litre V8 form, it could do that with very little apparent effort.
That character is a big part of the R129’s appeal today.
According to Anglia Car Auctions, the vendor had owned this particular SL500 since 2012.
The V5C recorded four former keepers.
Mileage stood at 128,560 miles.
That certainly didn’t make it a low-mileage collector’s example.
But it did make it the sort of R129 somebody might actually buy to use.
And personally, there’s something appealing about that.
Not every classic needs to spend its life underneath a fitted cover waiting for the next concours event.
The original service booklet was present.
ACA recorded ten service stamps, with the last dated July 2007 at 116,780 miles, plus the original pre-delivery inspection stamp.
The car also came with its accompanying book pack and previous MoT certificates.
Its current MoT runs until April 2027.
So while the mileage was substantial, there was at least useful history accompanying the car.
As always with a car of this age and complexity, condition and recent maintenance matter enormously.
And this is where cars like the SL500 become dangerous.
Not necessarily mechanically dangerous.
Financially tempting.
You look at the price and think:
“It’s a 5.0-litre V8 Mercedes convertible for the price of an ordinary used hatchback.”
Which it is.
But it remains a car that was engineered and built as an expensive luxury Mercedes.
The purchase price can depreciate.
The complexity doesn’t.
Roof hydraulics, suspension, electrical systems, air conditioning and all the other equipment still need looking after.
Buying the cheapest example simply because it’s cheap isn’t necessarily the clever move.
Buying a good one at a sensible price is a very different proposition.
For years, the R129 sat in a strange position.
The R107 before it was unquestionably a classic.
Nice examples commanded strong money.
Meanwhile, the R129 was simply the newer SL.
Then time moved on.
Suddenly the earliest R129s were 30 years old.
The styling started looking less like an old used Mercedes and more like a product of a particularly admired era of Mercedes-Benz.
People who remembered them when they were new reached the point where owning one became realistic.
And the best examples started receiving more attention.
That’s usually how the transition happens.
Calling an R129 a “future classic” is beginning to sound slightly odd.
Production began in 1989.
This example was registered in 1994.
It’s now more than 30 years old.
Perhaps the debate isn’t whether the R129 will become a classic.
Perhaps it’s how long it takes everybody to accept that it already is one.
And that’s exactly the sort of car ACA’s new Marketplace Classics sale is intended to capture.
Cars sitting at that fascinating point between used machinery and established collectible classic.
Which brings us back to that guide price.
£2,500 to £3,000.
Even allowing for the mileage, that certainly got people’s attention.
And we weren’t the only ones who thought so.
Before the auctioneer had properly opened the car to bidders in the room, the internet bidding was already beyond £4,000.
So much for the estimate.
Then things became entertaining.
Once bidding opened properly, two people in the hall became heavily involved.
Back and forth it went.
Another bid.
And another.
Then another.
Neither seemed particularly interested in giving up.
This is one of the things an auction result on a website can never really show.
You can look at an estimate.
Then look at a hammer price.
What you don’t see is the battle that happened between the two.
At one point during the reel, I joked that I wished I’d bought myself a coffee.
It really did start feeling like a spectator sport.
The bidding had already gone well beyond the upper estimate, yet neither side appeared ready to stop.
And once two people become determined to own the same car, guide prices can become almost irrelevant.
The car is worth whatever the person sitting opposite you is prepared to bid.
Plus one more bid.
This is where we’d stop reading for a moment.
You know the guide was £2,500 to £3,000.
You know internet bidding had already taken it beyond £4,000 before the room properly joined in.
And you know two people then started fighting over it.
So have a guess.
Where do you think it stopped?
Watch the auction below before reading any further.
Yes.
£7,800.
More than two and a half times the top estimate.
With the introductory Marketplace buyer’s premium added, the buyer’s total works out at approximately:
£8,549.
That’s quite a result from a £2,500 to £3,000 guide.
This is where auction results become interesting.
It’s very easy to look at a £7,800 hammer against a £3,000 upper estimate and conclude that somebody got carried away.
But that’s not necessarily what happened.
An estimate is an estimate.
It isn’t a valuation carved into stone.
And crucially, the eventual price wasn’t created by one person bidding against nobody.
There was competition.
Several people clearly saw more in this SL500 than the guide suggested.
Two bidders in particular were prepared to keep going.
The auction simply found the point at which only one of them was left.
We’ve seen this countless times.
A car can look like a £3,000 car until two people decide they both want it.
Then it’s a £4,000 car.
Then £5,000.
And suddenly everyone watching starts wondering where it will stop.
The reverse can happen too.
A car that appears certain to make strong money can arrive in front of the wrong audience on the wrong day and struggle.
That’s why we enjoy filming the bidding.
The estimate tells you what people thought might happen.
The auction tells you what actually happened.
So let’s look at the other side of the argument.
For approximately £8,549 including buyer’s premium, the successful bidder bought:
A 1994 Mercedes-Benz SL500.
A 5.0-litre V8.
An R129 that’s been with its previous keeper since 2012.
An original service book and accompanying history.
A hardtop.
And one of the defining Mercedes designs of its era.
Viewed that way, perhaps the figure doesn’t sound quite so wild.
That’s why this car felt like such an appropriate lot for the first Marketplace Classics sale.
We’re going to see more cars like this.
Not necessarily R129s specifically, but cars from the 1990s and 2000s that spent years in the wilderness between “used car” and “classic”.
The interesting ones are beginning to emerge.
The survivors are getting harder to find.
Nostalgia is catching up with them.
And buyers are starting to take notice.
There’s another important point here.
A modern classic doesn’t necessarily need 12,000 miles and an immaculate underside.
Cars like this 128,000-mile SL500 can have their own appeal.
They can be cars you actually use.
Cars you aren’t frightened to take on a long journey.
Cars where another thousand miles doesn’t feel like a financial catastrophe.
Provided the condition and maintenance stack up, that can make them more enjoyable than the museum-piece examples.
ACA says around 100 entries from its first Marketplace auction have sold so far.
That’s an encouraging start for a completely new sale format.
And judging by some of the bidding we watched, there’s clearly an appetite for affordable modern and future classics.
The next few years should be particularly interesting.
The pool of cars that enthusiasts consider collectible is expanding rapidly into the 1990s and 2000s.
Today’s cheap old car can become tomorrow’s car everybody wishes they’d bought.
Not every one will, obviously.
Working out which ones matter is half the fun.
That’s the question this SL500 leaves us with.
The guide said £2,500 to £3,000.
The internet had already pushed it beyond £4,000 before the room really got going.
Two bidders then turned the auction into a proper contest.
And eventually the hammer fell at £7,800.
Too much?
Or does around £8,549 including premium still look like an awful lot of Mercedes-Benz for the money?
Either way, one thing became very clear during the bidding.
The R129 isn’t waiting for people to notice it anymore.
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