Rare Car Archive

Makes › Mercedes-Benz Germany › SLR › SLR McLaren 722 S Roadster · Rare specification Extremely Rare

Mercedes-Benz
SLR McLaren 722 S Roadster

Roadster version of the 722 Edition

Mercedes-Benz SLR McLaren 722 S Roadster (Wikimedia Commons search)
Mercedes-Benz SLR McLaren 722 S Roadster (Wikimedia Commons search)
Photo: Alexander Migl · CC BY-SA 4.0
150BuiltIndependently researched
0Chassis documentedin this archive
?SurvivingNot yet verified
Contents
  1. 01Overview
  2. 02Production & history
  3. 03Specifications
  4. 04Colours & options
  5. 05Individual cars
  6. 06Reference

01Overview

At a glance

Built
150 Built
Years
Not yet verified
Engine
8-cylinder 90° V; light-alloy block; front, longitudinal; vertical · 5,439 cc / 5.4 LFactory: 5,439 cc
Power
478 kW / 650 PSFactory: 641 hp · converted
Top speed
335 km/hFactory: 208 mph · converted
Body
Not yet verified
Designer
Not yet verified
In this archive
Not yet verified
Surviving
Not yet verified

Sources and any conflicting figures are in the sections below.

Why it matters

The 722 S Roadster is the open-top version of the 722 Edition and one of the last and fastest SLR variants. Auction catalogues describe a run of just 150, and RM Sotheby's notes that only 24 came to the US market. It shares the engine and running gear of the 722 Edition coupé.

How rare is it?

Six separate kinds of rarity – never combined into one number.

Model rarityNot yet assessed
Specification rarityExtremely Rare 150 · Built1
Colour rarityNot yet assessed
Individual rarityNot yet assessed
Historical rarityNot yet assessed
Survival rarityNot yet assessed

Each kind of rarity is rated separately and never combined.

Photos

Exterior, interior and detail photos with their licences.

02Production & history

Production

Every figure says what it counts.

What is countedFigureBasisStatus
Factory package productionSLR McLaren 722 S Roadsters produced 1501 Factory production Independently researched

Independent counts (e.g. engine and colour) are never combined into a calculated figure. Surviving examples are never presented as original production.

History

Bonhams says the 722 Edition roadster was unveiled at the 2007 Frankfurt Motor Show as the 722 S, went on sale in January 2009 and was limited to 150 units, with the standard SLR roadster's folding roof mechanism. RM Sotheby's similarly dates the roadster to 2009, after the 2006 coupé. The "722" refers to Stirling Moss and Denis Jenkinson's 1955 Mille Miglia-winning 300 SLR, which started at 7:22 a.m.

The factory archive does not list the 722 S as a separate model. Its entry for the standard SLR McLaren Roadster (design name R 199 E 55 ML, type 199.476) covers 670 units produced between May 2007 and May 2009, a total that includes all roadsters and not the 150 722 S cars.

Variants

How each version differs from the standard SLR McLaren 722 S Roadster.

No variants documented yet. Have a source? Contribute it.

03Specifications

Technical specifications

Engine

Engine familyNot yet verified
Engine codeM 155 E 55 ML / 155.9802Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Layout8-cylinder 90° V; light-alloy block; front, longitudinal; vertical2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Cylinders82Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Displacement 5,439 cc / 5.4 LFactory: 5,439 cc2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Bore 97 mmFactory: 97 mm2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Stroke 92 mmFactory: 92 mm2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Compression ratio8.8:12Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Valvetrain2 intake, 1 exhaust / V-shaped overhead; 1 overhead camshaft per cylinder bank (adjustable); camshaft drive: double roller chain2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Fuel systemmicroprocessor-controlled injection system with HFM (Bosch ME engine management) / supercharger with intercooling2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Power 478 kW / 650 PSFactory: 641 hp · converted3,4 Independently researchedThe archive gives 478 kW / 650 hp for the 722 Edition coupé with the same engine; the Arizona lot uses "bhp" and the others "hp" without stating a standard.
Power atNot yet verified
Torque 820 NmFactory: 605 lb-ft · converted3,5 Independently researchedThe archive gives 820 Nm for the 722 Edition coupé.

Transmission & drivetrain

Gearbox5-speed automatic transmission; planetary gear system2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Gears52Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Gear ratiosI. 3.56; II. 2.19; III. 1.41; IV. 1.0; V. 0.83; R. 3.172Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Final drive3.062Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Driven wheelsrear2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.

Chassis, body & dimensions

ChassisMonocoque in CRP2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Front suspensiondouble wishbone; coil springs, torsion bar stabiliser2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Rear suspensiondouble wishbone; coil springs2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
BrakesSensotronic Brake Control electrohydraulic brake system with antilock system and Brake Assist; fibre-reinforced ceramic disc brakes front (internally ventilated) and rear2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Steeringrack-and-pinion parameter power steering2Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Body constructionNot yet verified
Wheelbase 2,700 mmFactory: 2,700 mm6Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Length 4,656 mmFactory: 4,656 mm6Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Width 1,908 mmFactory: 1,908 mm6Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
HeightNot yet verified
Front track 1,638 mmFactory: 1,638 mm6Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Rear track 1,569 mmFactory: 1,569 mm6Figure is for the SLR McLaren Roadster / 722 Edition coupé pages of the archive; the 722 S Roadster itself is not documented separately.
Kerb weightNot yet verified
Dry weightNot yet verified

Performance

Maximum speed 335 km/hFactory: 208 mph · converted3,5 Independently researchedThe archive gives 337 km/h for the 722 Edition coupé. The same lots quote 0-62 mph in 3.1 s, against 3.6 s to 100 km/h for the coupé in the archive, so no acceleration figure is entered.
0–100 km/hNot yet verified
Fuel tankNot yet verified

“Not yet verified” means no source has been checked for that value yet. Nothing is estimated to fill a gap.

04Colours & options

Factory colours & interiors

Original paint and trim, with the number of cars in each where a source gives it.

Not yet documented. Have a source? Contribute it.

Factory options & codes

Codes are shown exactly as written by the manufacturer.

Not yet documented. Have a source? Contribute it.

05Individual cars

Chassis register

Every documented car, with its colours, history and where it is now. Open a row for the full record. Known chassis are not automatically authenticated originals.

Not yet documented. Have a source? Contribute it.

Competition history

Every race result of the individual cars, in date order. Click a chassis number to open its full record in the register.

Not yet documented. Have a source? Contribute it.

Auction & sale history

Documented public sales of the individual cars. Click a chassis number to open its full record in the register.

Not yet documented. Have a source? Contribute it.

See one in person

Museums where an example of this car can be seen.

No example is documented on public display yet. Have a source? Contribute it.

06Reference

Identification guide

How to tell an original from a replica or later conversion.

Catalogue descriptions of the 722 S Roadster list a lower, stiffer suspension, 19-inch forged multi-spoke wheels, larger carbon-ceramic brakes with red calipers, an enlarged front splitter and revised diffuser, carbon-fibre interior trim, XL carbon bucket seats with Alcantara, and red seat belts. Cars in the cached lots were finished in Crystal Laurite Silver, Crystal Antimon Grey or Fire Opal. Chassis numbers quoted begin WDDAK76F (US lots) or WDD1994761M (Swiss-specification car).

Sources

Each number links to the exact facts it supports.

  1. 1
    RM Sotheby's Monterey 2021 – 2009 Mercedes-Benz SLR McLaren 722 S Roadster Level B
    • 150 SLR McLaren 722 S Roadsters produced
    Accessed 2026-11-12
  2. 2
    SLR McLaren Roadster / R 199 E 55 ML, 2007 - 2009 (Classic M@RS, standard roadster) Level A Mercedes-Benz Group AG (Classic M@RS, Mercedes-Benz Public Archive)
    • Engine type : M 155 E 55 ML / 155.980 (Technical data)
    • Number of cylinders / arrangement : 8 / 90° V; light-alloy block (Technical data)
    • Total displacement : 5439 cc (Technical data)
    • Bore x Stroke : 97.0 x 92.0 mm (Technical data)
    • Compression ratio : 8.8 (Technical data)
    • Number of valves / arrangement : 2 intake, 1 exhaust / V-shaped overhead (Technical data)
    • Valve operation : 1 overhead camshaft per cylinder bank (adjustable) (Technical data)
    • Fuel system : microprocessor-controlled injection system with HFM (Bosch ME engine management) / supercharger with (Technical data)
    • Gearing : 5-speed automatic transmission (Technical data)
    • Gear ratios : I. 3.56; II. 2.19; III. 1.41; IV. 1.0; V. 0.83; R. 3.17 (Technical data)
    • Final drive ratio : 3.06 (Technical data)
    • Driven wheels : rear wheels (Technical data)
    • Frame design : Monocoque in CRP (Technical data)
    • Front-wheel suspension : double wishbone (Technical data)
    • Rear-wheel suspension : double wishbone (Technical data)
    • Brake system (foot brake) : Sensotronic Brake Control electrohydraulic brake system with antilock system and (Technical data)
    • Steering : rack-and-pinion parameter power steering (Technical data)
    Accessed 2026-11-12
  3. 3
    2009 Mercedes-Benz SLR McLaren 722 S Roadster, Miami 2026, lot 189 Level C RM Sotheby's
    • Supercharged 5.4-liter V-8 producing 641 hp and 605 lb-ft of torque
    • a top speed of 208 mph
    Accessed 2026-11-12
  4. 4
    2009 Mercedes-Benz SLR McLaren 722 S Roadster, Arizona 2017, lot 253 Level C RM Sotheby's
    • 641 bhp, 5,439 cc V-8 engine with a supercharger
    Accessed 2026-11-12
  5. 5
    2009 Mercedes-Benz SLR McLaren 722 S Roadster, Monterey 2024, lot 313 Level C RM Sotheby's
    • 641 horsepower and 605 pound-feet of torque
    • top speed was a screaming 208 mph
    Accessed 2026-11-12
  6. 6
    SLR McLaren 722 Edition / C 199 E 55 ML, 2006 - 2008 (Classic M@RS, coupé) Level A Mercedes-Benz Group AG (Classic M@RS, Mercedes-Benz Public Archive)
    • Wheelbase : 2700 mm (Technical data)
    • Length : 4656 mm (Technical data)
    • Width : 1908 mm (Technical data)
    • Front / rear track : 1638 / 1569 mm (Technical data)
    Accessed 2026-11-12

Keep exploring

More from Mercedes-Benz

See all 212 cars by Mercedes-Benz →

Germany More from Germany

71 other makes from Germany9ffAC SchnitzerAdlerAgria-WerkeAlbertAlpinaAMOAmphicarApolloArtegaAudiAuto UnionAutomobili PininfarinaBayerische AutowerkeBitterBMWBohseBoldmenBorgwardBovensiepenBrennaborBrütschChampionDauerDKWFMR (Messerschmitt)FuldamobilGemballaGepardGlasGoggomobilGoliathGumpertGutbrodHanomagHeinkelHorchHyundaiIFAIrmscherAll makes →