Mercedes SLR 722: 650 HP Specs, Price, 150 Built

The Mercedes-Benz SLR McLaren 722 Edition is the sharper, rarer answer to a question few manufacturers would dare ask today: what happens when a carbon-bodied grand tourer is developed jointly by Mercedes-Benz and McLaren, then tuned as a tribute to one of the Silver Arrows' greatest endurance-race victories? Built between 2006 and 2008 in a run of 150 coupes, the 722 Edition pairs a hand-assembled 5,439 cc supercharged AMG V8 with a carbon-fibre structure, and opens the Batman Garage Legendary Cars collection.

Mercedes-Benz SLR McLaren 722 Edition Specifications

The 722 Edition is a front-mid-engine, rear-wheel-drive coupe with a supercharged V8 and a five-speed automatic transmission. The headline figures are 650 hp, 820 N·m of torque, a 337 km/h top speed and 3.6 seconds from rest to 100 km/h.

Specification	Mercedes-Benz SLR McLaren 722 Edition
Model	Mercedes-Benz SLR McLaren 722 Edition
Production	2006–2008
Engine	5,439 cc supercharged AMG V8 (M155)
Power	650 hp at 6,500 rpm
Torque	820 N·m at 4,000 rpm
Transmission	5-speed AMG SPEEDSHIFT automatic
Layout	Front-mid-engine, rear-wheel drive
Top speed	337 km/h
0–100 km/h	3.6 s
Production total	150 coupes

The 722 Edition keeps the SLR's long bonnet and side-exit exhausts, with a 722 badge on the flank. Image: Batman Garage

What the Number 722 Means

The 722 name refers to Stirling Moss and Denis Jenkinson's 1955 Mille Miglia-winning Mercedes-Benz 300 SLR, which started at 7:22 a.m. The 2006 722 Edition converted that history into a modern special series with more power, revised aerodynamics, a lower and firmer suspension setup, larger front ceramic brakes and unmistakable dark wheels with red brake callipers.

That connection is not decorative. The naming ties a 21st-century carbon-bodied GT directly to the pre-war and post-war Silver Arrow tradition, the same lineage that runs through the Mercedes-Benz 300 SL Gullwing in the Batman Garage collection.

Hand-assembled 5,439 cc supercharged AMG M155 V8 in the engine bay of the Mercedes-Benz SLR McLaren 722 Edition — The 5.4-litre M155 V8 is assembled by hand and uses a supercharger with intercooling. Image: Batman Garage

Mercedes-Benz SLR McLaren 722 Edition cockpit with Alcantara steering wheel, red stitching and carbon-fibre centre console — The cockpit combines Alcantara, red stitching and exposed carbon-fibre trim. Image: Batman Garage

Engineering and Performance: 5.4-Litre Supercharged AMG V8

Its hand-assembled 5.4-litre M155 AMG V8 uses a supercharger and intercooling to produce 650 hp at 6,500 rpm and 820 N·m at 4,000 rpm. Power reaches the rear wheels through a five-speed AMG SPEEDSHIFT transmission. The formula is not a lightweight track special; it is a brutally fast front-mid-engine GT with a carbon structure and long-distance composure.

The supercharged AMG V8 layout also separates the 722 Edition from the naturally aspirated and hybrid Mercedes flagships that followed, from the SLS AMG to the Formula 1-derived Mercedes-AMG ONE.

Chassis, Brakes and Aerodynamics

Compared with the standard SLR McLaren, the 722 Edition received revised aerodynamics, a lower and firmer suspension setup and larger front ceramic brakes. The visual signatures follow the hardware: dark multi-spoke wheels, red brake callipers and a more aggressive front-end treatment. The result is a car that reads as a distinct special series rather than an options package.

Mercedes-Benz SLR McLaren 722 Edition wheel detail with Michelin 295/30 ZR19 tyre, dark spokes and red brake calliper — Dark wheels and red brake callipers are the clearest external signatures of the 722 Edition. Image: Batman Garage

Why the SLR McLaren 722 Edition Became a Legend

Only 150 coupes were produced. The 722 Edition matters because it captures a short, strange and fascinating chapter in which Mercedes-Benz design, AMG power and McLaren engineering met in a car that could never be mistaken for anything else. It is a modern Silver Arrow with a supercharged V8 heartbeat.

Rear view of a silver Mercedes-Benz SLR McLaren 722 Edition with rear diffuser and twin tail lights — Rear-end treatment with integrated diffuser and twin tail lights. Image: Batman Garage

Batman Garage Collector Verdict

The Mercedes-Benz SLR McLaren 722 Edition earns its place in the Batman Garage Legendary Cars collection because it has a complete identity. Its performance figures remain part of the story, but its real value is the way the design, engineering and era align. This is not merely a fast car from 2006 to 2008; it is a machine that changed how enthusiasts define a supercar. Individual provenance, condition, originality and market documentation should always be verified before any purchase.

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Frequently Asked Questions

What makes the Mercedes-Benz SLR McLaren 722 Edition special?

It is the sharper, rarer version of a carbon-bodied grand tourer developed jointly by Mercedes-Benz and McLaren, then tuned as a tribute to one of the Silver Arrows' greatest endurance-race victories. The 722 Edition combines 650 hp, revised aerodynamics, a lower and firmer suspension setup and larger front ceramic brakes with a production run of only 150 coupes.

How much power does the SLR McLaren 722 Edition have?

650 hp at 6,500 rpm and 820 N·m of torque at 4,000 rpm, from a hand-assembled 5,439 cc supercharged AMG M155 V8 driving the rear wheels through a five-speed AMG SPEEDSHIFT automatic transmission.

What does the number 722 mean?

It refers to the starting number of the Mercedes-Benz 300 SLR that Stirling Moss and Denis Jenkinson drove to victory in the 1955 Mille Miglia. The car started at 7:22 a.m., and the 2006 special series took that number as its name.

Is the SLR McLaren 722 Edition a collector car?

Yes. Its historical relevance, its production story and its unmistakable character make it an established enthusiast and collector reference. Individual provenance, condition, originality and jurisdiction-specific documentation must always be checked separately.