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SOLD 1996 SL73 AMG, Diamond Black Metallic/Black, 3,027 km, CollectingCars Auction (Dartford, Kent, United Kingdom)

Harv

E500E Guru
Member
Saw this pop up and thought it was an interesting look. Turns out there is much more than presented.

The seller admitted to making a fake engine badge and the body kit is all sort of confused. But that doesn't stop Collecting Cars and Harris from claiming it's real. I'll let these posts do the talking.

VIN = WDB1290762F146533



1996 MERCEDES-BENZ (R129) SL73 AMG - 3,027 KM

KEY FACTS
  • This Mercedes-Benz SL73 AMG is a very low-mileage example of the incredibly rare high-performance grand tourer.
  • It is powered by a naturally aspirated 7.3-litre V12, delivering 518bhp and 553lb-ft of torque to the rear wheels through a five-speed automatic transmission.
  • This SL73 AMG left the factory as an SL600 before being converted in period to SL73 specification for the Brunei royal family.
  • The car was recommissioned following its arrival into the UK in 2017 before being registered with the DVLA in March 2023.
  • It is believed to be one of only two right-hand-drive examples produced.
EQUIPMENT AND FEATURES
  • The SL73 AMG featured a substantial 7.3-litre derivative of the M120 V12 engine complete with a new crankshaft, titanium pistons, big valve cylinder heads, and a sports exhaust. The engine later served as the powertrain choice for Italian supercar maker Pagani in its acclaimed Zonda.
  • Other upgrades for the SL73 included a modified gearbox, an AMG-branded steering wheel and speedometer (the latter reading up to 300km/h), and AMG door sills, carbon-fibre engine cover, rear boot lid spoiler, and revised suspension.
  • This example is finished in the special-order AMG shade of Diamond Black Metallic over a black leather-trimmed cabin, punctuated by walnut inlays.
  • It rides on a set of split-rim 18-inch five-spoke alloy wheels, wrapped in Goodyear Eagle F1 tyres.
  • Equipment includes heated and electrically adjustable multi-contour front seats with three-position memory, cruise control, climate control, an electrically deployable rollover bar, height-adjustable suspension with switchable dampers, and a CD stereo.
  • Accompanying the sale is the owner’s book pack, recommissioning invoices, removable panoramic glass hard top, wind deflector, spare wheel, and warning triangle.
Factory specification:
  • 000U Special Paintwork – AMG Diamond Black Metallic
  • 216 Self-Levelling suspension with Adaptive Damping System (ADS)
  • 261A Black leather
  • 340 Additional 3rd stop lamp
  • 341 Additional blinker lamps
  • 404 Multi-contour seat, front left
  • 405 Multi-contour seat, front right
  • 415 Glass roof
  • 481 Undershields
  • 511 Radio MB Exquisit with traffic news decoder (VK), with RDS (Panasonic)
  • 551 Anti-theft/anti-break-in warning system
  • 565 Rear seats used on SL models
  • 617 Xenon headlamps, left-hand traffic
  • 682 Fire extinguisher
  • 740 Black soft top fabric 9001
  • 807 Change of model year, the last figure showing the new model year
  • 819 Boot-mounted CD changer – Alpine
  • 882 Passenger compartment protection (infrared)
AMG upgrade components:
  • M120 SL73 AMG engine
  • AMG body kit
  • Aero 3 split rim 17-inch alloy wheels
  • Recaro seats
  • AMG monogrammed steering wheel
  • AMG monogrammed white dial instruments
  • AMG monogrammed chrome door sills
  • AMG carbon-fibre engine cover
  • AMG boot lid rear spoiler
  • AMG suspension
  • AMG exhaust
CONDITION
  • Please refer to the photo gallery to assess exterior and interior condition.
  • The seller reports that the paintwork was in poor condition upon the car’s arrival into the UK, and that it subsequently underwent a full respray.
  • Specific notes from the seller include: some of the interior wooden trim could benefit from being refinished, but were left in their as-acquired condition for the sake of originality.
  • The most recent MOT test was conducted on 9 August 2023 at 2,667 kilometres, resulting in a clean first-time pass.
SERVICE HISTORY
  • The car has been recommissioned by Mercedes-Benz specialist NJS Solutions of Brands Hatch during the seller’s five-year ownership. This included respraying the bodywork, overhauling the interior and the electric roof, repairing the ECUs and wiring loom, fitting new brake discs and pads, replacing the suspension, refurbishing the wheels, and fitting new tyres.
  • The seller reports that all parts fitted were genuine Mercedes-Benz or AMG items.
SUMMARY
The R129-generation Mercedes-Benz SL73 AMG is a hugely powerful and remarkably rare grand tourer, powered by a substantial 7.3-litre V12: the same engine that went on to power the exotic Pagani Zonda. Just 50 examples of the SL73 are believed to have been produced, and this particular car has covered a very low 3,027 kilometres, having been kept as part of a substantial collection within the Brunei royal family. Recommissioned and overhauled upon its arrival into the UK in 2017, it is sure to appeal to discerning marque collectors, and would make a superb centrepiece within any assembly of AMG’s most sought-after models.
The description of this consignment is, to the best of the seller’s knowledge, accurate and not misleading. Collecting Cars requests a range of detail about the lot from the seller and performs a level of due diligence. However, potential buyers must independently satisfy themselves as to the accuracy of the description. Potential buyers should view or arrange inspections as well as conduct any research they feel is necessary before committing to bid or buy. 

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One more thing I saw when the video first appeared on YouTube with CH, the ducktail lower edge doesn't align with the lower edge of the trunk lid or upper edge above the headlight. Like it shrunk.
That's definitely weird, besides having a Facelift car with prefacelift body kit. However things might habe been requested. The ducktail however looks off definitely.
Worth to investigate deeper, it looks it's one of the cars which were rotting hence the full respray, seller states brittle plastics also hear it takes alot of effort and money to get it back, further they state wiring repairs (rats?) so despite the low mileage that car can be really one of the samples which ar never excellent until fully and qualified restored.
One can speculate how the car arrived in the UK... Maybe with damaged/nissing body kit and due to either incompetence or lack of knowledge the gen one kit was installed.
A hint here could be the statement all body kit parts are original amg (or close to that).
 

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3100km / 1800 miles? If accurate, that was a really rough 1800 mile life.

Nothing says "no-mile, factory-new" like random numbers scribbled on the lower edge of the grille, which look suspiciously like salvage yard writing for "SL320"... and a spare tire that spent time in a muddy field... and painted door handles?

Already bid to £216k with 2 days left.

:yayo:

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See that Grill photo really reinforces the point that the car came quite screwed up to the UK possibly and the parts have been pieced together hence the wrong gen body kit. Brunei is high humidity and heat. Things rust there and collect fungus easily when left unattended.
 
See that Grill photo really reinforces the point that the car came quite screwed up to the UK possibly and the parts have been pieced together hence the wrong gen body kit. Brunei is high humidity and heat. Things rust there and collect fungus easily when left unattended.
100% been moldy at some point based on videos of other Brunei stored cars I've seen. Honestly maybe he's right about this one it should just be a donor car but not to a zonda, rather take the engine out, rebuild it, and put it in a mint SL600 or W124 project. Shame that would hurt its value though. EITHER WAY this is not going to be someone's daily it's just going to sit in a collection so who cares if that's in a steamy brunei dungeon or a climate controlled garage in the UK.
 
I would be willing to bet that this car is a 600 6.0 (tuned).

The seller also conveniently failed to take a photo of the AMG block serial and displacement stamp which is a few inches forward of the MB engine number (which they DID photograph). Furthermore, all the Brunei-exclusive 73 engines have several HWA serial sequences lasered/etched into at the back passenger side of the block, which are easily visible with a borescope. I know this because I've inspected two ex-BRF SL73s some moons ago.....

One more thing, since this fallacy gets repeated ad nauseam by people like Harris/auction houses/dealers.....

You cannot "donor" these cars for a needy Zonda.
Even if you could possibly execute a swap flawlessly, the Pagani dealer will never touch your car ever again.
There are unique components and identifiers for the engines sold to Pagani between 2001 and 2018.

All the Paganis using a derivative of this engine came out AFTER the Bruneian collapse which sealed up the collection, and in fact the Zonda engine lineage benfitted greatly from the R&D which the Brunieans essentially bankrolled for 5 years. Thus I think it entirely reasonable to consider low-hanging fruit-----from the standpoint of AMG and Pagani----that the they have always had a protocol in place for when/if the world market is ever flooded by these 73 engines from Brunei.

There are likely a number of Pagani owners who have had better informed discussions about this and have a more learned position on the matter.
 
Geez people think the Zonda engine is the exact same?? :doh:

maw
We'd not be wrong for saying they are the same, only they're not the exact same (as you pointed out).

To clarify my post.....I think its fine for people to state that they're functionally the same, but perhaps "incorrect" or "negligent" to imply that an SL 73's engine could, should, or is to be viewed as a donor for a Pagani. On top of that, there are indeed components and protective protocols (mentioned above) which prohibit such a donation from being realistic and/or possible.
 
This car is a fake until we see proof otherwise. Too many shady things going on. Writing that sentiment here for posterity and when it inevitably comes to market again with a different engine cover :)
 
Sold for £340k / $370k / €397k. One wonders if the buyer will make any effort to confirm displacement or power output.

Is there no peanut gallery on CC auctions? Or are comments removed post-auction? I'm not familiar with this platform.

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There's a saying that includes the words "fool" and "money". Can't quite remember it.
 

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