Mercedes SLS AMG E-Cell: Electric Supercar Review And Specs

The Mercedes SLS AMG E-Cell represents a bold pivot in automotive engineering, converting the roaring gullwing-door supercar into a whisper-quiet electric beast. Launched as a prototype around 2010-2013, this zero-emission variant retained the SLS’s dramatic styling while introducing revolutionary battery and motor technology, delivering supercar thrills without fossil fuels.

Engineering a Silent Powerhouse

At its core, the E-Cell ditches the traditional V8 engine for a quartet of electric motors—one at each wheel—enabling all-wheel drive and precise torque distribution. This setup, often called AMG Torque Dynamics, uses sensors to monitor acceleration, yaw, and braking, adjusting power to individual wheels for optimal grip and stability. The powertrain produces up to 740 horsepower and 738 lb-ft of torque, rocketing the car from 0-60 mph in about 3.6 seconds, nearly matching the combustion version.

The battery pack is a 60 kWh lithium-ion unit comprising 864 cells, weighing around 1,208 pounds and positioned along the car’s spine for optimal weight distribution. Liquid-cooled and encased in carbon fiber, it minimizes intrusion into the passenger space while enhancing safety. The chassis features an aluminum space frame with carbon-fiber reinforcements and body panels, paired with a pushrod suspension and carbon-ceramic brakes to handle the added mass, estimated at over 4,400 pounds.

Performance Modes and Driver Controls

Drivers can select from multiple modes—Comfort, Sport, Sport Plus, and Manual—to tailor the experience. In Comfort, power is limited to 40% for relaxed cruising; Sport unlocks 60%; Sport Plus unleashes the full 740 hp with aggressive throttle mapping. A unique feature allows regenerative braking adjustment via steering wheel paddles, mimicking gear shifts: from zero regen for coasting to high levels that aggressively slow the car, potentially activating brake lights.

This system not only recaptures energy but enhances handling. On tracks, Sport Plus mode shines, with rapid motor response enabling sharp turn-in, flat cornering, and corrective torque vectoring that outpaces traditional stability controls. Electrohydraulic steering provides precise feedback, though some testers noted it could offer more feel.

Design and Interior Evolution

Visually, the E-Cell sports a distinctive fluorescent “AMG lumilectric magno” paint, signaling its electric nature, while retaining the SLS’s iconic gullwing doors and sleek lines. Underneath, the front axle adopts a multi-link pushrod design to accommodate batteries, improving packaging without sacrificing rigidity.

The cockpit remains familiar, with Alcantara and leather accents, but gains an LCD display showing charge status, range estimates, and battery vitals. Minimalist changes emphasize the electric focus, keeping the driver immersed in the analog supercar vibe. Range hovers around 130-155 miles under careful driving, limited by the heavy pack but impressive for a prototype.

Technical Specifications at a Glance

Track Impressions and Real-World Dynamics

Testers on circuits like the short end of a demanding track praised the E-Cell’s poise. In Sport Plus, it corners flatter than the standard SLS, with motors instantly adjusting for oversteer by braking or boosting individual wheels—no ABS intervention needed. Acceleration feels surreal: silent surges to triple-digit speeds in seconds, torque available without gear changes.

Regen paddles add engagement, allowing one-pedal driving akin to engine braking in higher gears. Braking blends friction and electric regen seamlessly, with ceramics providing fade-free stops. While heavier, the low battery placement aids balance, making it surprisingly agile.

The Role in AMG’s Electrification Strategy

The E-Cell was part of AMG’s “Performance 2015” initiative, blending high performance with sustainability. It previewed electric torque vectoring later seen in production models, proving supercars could go green without compromise. Though limited production (around 2013), it influenced modern EVs like the EQ series.

Challenges and Limitations

• Weight Penalty: Batteries add significant mass, impacting agility despite advanced chassis tweaks.
• Range Anxiety: 130+ miles suits track days or short blasts, not long tours.
• Cost: Exotic materials and tech made it ultra-exclusive, priced for collectors.
• Charging: High-voltage 400V system required specialized infrastructure.

Legacy and Modern Relevance

Today, the SLS E-Cell stands as a pioneer, validating four-motor AWD in supercars—a concept now mainstream in hypercars like the Rimac Nevera. Its silent power delivery foreshadowed Tesla’s Plaid models, blending luxury with raw speed. For enthusiasts, it’s a collector’s gem, embodying Mercedes’ early EV ambition.

Frequently Asked Questions (FAQs)

What makes the SLS AMG E-Cell unique?

Its four individual electric motors per wheel enable true torque vectoring and all-wheel drive, unmatched in contemporaries.

How fast is the 0-60 mph sprint?

Claimed at 3.6 seconds, rivaling the V8 SLS despite extra weight.

What’s the battery range?

Around 130-155 miles, optimized by low mounting and regen.

Did it enter full production?

Limited units in 2013, mainly prototypes showcased from 2010.

Can you drive it like a traditional supercar?

Yes, with paddle-controlled regen simulating gears and modes for track or road.