Lamborghini Revuelto: The V12 Lives On

When regulations began killing off large engines, everyone feared for the Lamborghini V12. The Aventador was supposed to be the end. But Lamborghini refused to let it die. Instead, they reinvented it.

The Lamborghini Revuelto is the brand’s first HPEV (High Performance Electrified Vehicle). It replaces the Aventador and brings the flagship into the hybrid era—not to save fuel, but to create speed.

Historical Context: Why the V12 Had to Survive

The Lamborghini V12 is not merely an engine specification. It is a cultural inheritance stretching back to Giotto Bizzarrini’s original 3.5-liter design of 1963—the engine that powered the 350GT, the Miura, the Countach, the Diablo, the Murciélago, and the Aventador. For six decades, every Lamborghini flagship has been defined by a naturally aspirated V12, and the unique sensory experience that configuration provides: the high-revving power delivery, the mechanical howl that builds from idle to redline without interruption, the lack of turbo lag that makes every throttle input feel direct and immediate.

As Euro 6 emissions standards, CO2 fleet average requirements, and growing regulatory pressure on large-displacement internal combustion engines tightened throughout the 2010s, the naturally aspirated V12 faced potential extinction. Ferrari replaced their V12 flagship’s companion engine in the 488 with a turbocharged V8. McLaren went further, abandoning natural aspiration entirely across their range. Even Aston Martin, whose V12 identity was comparable to Lamborghini’s, began questioning whether the configuration was viable.

Lamborghini’s answer was to invest massively in a new V12—not to maintain it as it was, but to reinvent it. The LB744 engine in the Revuelto is a clean-sheet design, not a development of the Aventador’s unit. By electrifying it with three motors, Lamborghini simultaneously improved its real-world performance beyond what a standalone V12 could achieve while meeting the regulatory requirements that would otherwise have made it impossible. The electrification saved the V12. This is the story of the Revuelto.

The LB744 V12 Engine: A New Generation

The heart of the Revuelto is a naturally aspirated V12, codenamed LB744. Despite sharing the same basic configuration as its predecessor, it is fundamentally different in almost every important dimension.

Orientation: The engine is still mounted “Longitudinale Posteriore”—lengthwise, rear-mid position—but it has been rotated 180 degrees compared to the Aventador’s layout. The crankshaft now faces forward rather than rearward. This change enabled the new gearbox arrangement and improved packaging for the hybrid components.
Weight: It is 17 kg lighter than the Aventador engine, achieved through structural optimization and the use of lightweight materials throughout the engine architecture.
Rev Limit: The LB744 screams to 9,500 rpm—500 rpm higher than the Aventador SVJ’s already impressive 8,500 rpm limit. This higher redline is not marketing; it reflects genuinely reduced rotating mass and improved valvetrain dynamics in the new design.
Output: On its own, the V12 produces 825 hp—already surpassing the Aventador SVJ’s 770 hp by a significant margin.
Sound: Because it has no turbos and no supercharging, the sound is pure, high-pitched, and deafening. The decision to specify a high-flow exhaust system that exits directly upward between the taillights, close to the driver’s ears, ensures that the LB744’s acoustic character is impossible to ignore.

The Hybrid System: Tri-Motor Fury

To reach the magic 1,000+ horsepower figure—a psychological milestone that carries genuine marketing significance—Lamborghini added three electric motors in a carefully considered arrangement.

Front Axle: Two axial-flux electric motors power the front wheels independently (one per wheel). This eliminates the need for a conventional front differential and enables precise Torque Vectoring: by varying the power output between the two motors, the system can apply more drive to the outside wheel in a corner, effectively pulling the car around the turn with electrically generated yaw moment.
Rear: One electric motor sits above the gearbox to assist the V12. Its primary function is to fill in torque during gear changes—eliminating the brief power interruption that occurs even with the fastest dual-clutch transmissions, ensuring perfectly continuous acceleration.
Battery: A 3.8 kWh battery sits in the central tunnel (occupying the space where the transmission used to be in the Aventador’s layout). It provides power for short bursts of electric-only acceleration and enables limited silent city driving—up to approximately 10 km on electricity alone.

Total System Power: 1,015 CV (1,001 hp).

The electric motors are not there to make the Revuelto feel like a Tesla. They are there to fill the gaps in the V12’s power delivery—the brief moments during gear shifts, the fractional delay at low revs—and to add dynamic capabilities (particularly the front torque vectoring) that a conventional mechanical drivetrain cannot easily provide. The result is a car that feels both more immediate and more connected than the Aventador it replaces, despite being heavier.

The Gearbox Revolution

The Aventador was famous—or infamous, depending on your perspective—for its single-clutch ISR (Independent Shifting Rods) gearbox, which delivered gear changes with the mechanical violence of a sledgehammer. Each shift arrived with a physical shock; on track it was acceptable, in traffic it was demanding.

The Revuelto replaces this entirely with a modern 8-speed Dual-Clutch Transmission (DCT).

Placement: Because the battery occupies the central tunnel that previously housed the gearbox in the Aventador’s longitudinal arrangement, Lamborghini mounted the DCT behind the engine, transversely (sideways). This is a completely different mechanical architecture from any previous Lamborghini flagship.
Result: The compact transverse placement allows for an enlarged rear diffuser, better packaging of the exhaust system, and optimal weight distribution (44% front / 56% rear). The DCT delivers shifts faster than the human nervous system can perceive them in Corsa mode.
Reverse: There is no physical reverse gear in the DCT. The car reverses using only the two front electric motors, effectively making the Revuelto a front-wheel-drive car when backing up. This is an elegant solution to a packaging challenge—and one with historical resonance, since Lamborghinis have traditionally been difficult to reverse due to zero rear visibility.

The “Monofuselage” Chassis

The Revuelto’s chassis represents a significant advance over the Aventador’s already impressive carbon fiber monocoque.

Front Subframe: For the first time in a Lamborghini flagship, the front crash structure is made of Forged Composites (chopped carbon fiber combined with resin, pressed into shape under heat). This material is 20% lighter and 25% stiffer than the aluminum structure used in the Aventador, and it does not require the expensive molds and hand layup process of conventional woven carbon fiber—making it more practical for production use.
Overall Rigidity: The entire chassis is 10% lighter and 25% stiffer than the Aventador equivalent, which was already considered outstanding for its class.
Safety: The combination of carbon fiber monocoque and forged composite subframes provides exceptional crash protection alongside the low weight—meeting modern safety standards that would have been difficult to achieve with a comparable aluminum structure.

Driving Modes: From City to Corsa

The hybrid system adds meaningful complexity to the car’s driving modes, creating a wider range of characters accessible to the driver.

Città (City): Pure electric mode. 180 hp from the front electric motors only. Front-wheel drive. Silent. Capable of urban travel without disturbing residents or attracting attention. A novelty on a 350 km/h supercar, but a practical addition for owners who live in noise-restricted urban environments.
Strada: Hybrid mode with the V12 always running but in a relaxed state. The electric motors supplement as needed. Comfortable, relatively quiet, suitable for long-distance cruising.
Sport: V12 plus hybrid in more aggressive coordination. Stability control remains present but less restrictive. A good balance between safety and engagement for spirited road driving.
Corsa: Full 1,015 hp attack mode. The battery is actively maintained at a high state of charge by the V12 to ensure maximum electric boost is available at all times. Stability control reduced to minimum intervention. The full, unrestricted potential of the car is available.

Design: Y-Shapes Everywhere

Visually, the Revuelto synthesizes influences from multiple Lamborghini generations—the clean flanks of the Sián, the wedge proportions of the Countach legacy, and the angular aggression of the Aventador—into something genuinely new.

Y-Lights: The signature LED daytime running lights form massive “Y” shapes at the front corners, a theme repeated in the taillights and echoed throughout the interior dashboard and vent architecture. This Y-motif has become Lamborghini’s most identifiable design signature of the current era.
Exhaust: The two massive hexagonal exhaust pipes are mounted high up in the center of the rear fascia, directly between the taillights, with the rear suspension components visible below them through an open-section design. The exposed mechanicals are a deliberate aesthetic choice, communicating the car’s mechanical nature rather than concealing it.
Cabin Space: One of the most tangible improvements over the Aventador is interior space. The Revuelto offers 26mm more headroom and 84mm more legroom—enough that a driver of well above average height can now sit comfortably with a racing helmet, something that was impossible in many Aventadors.

Performance That Defies the Weight Penalty

The Revuelto’s total system weight is higher than the Aventador SVJ—the battery, three electric motors, and associated power electronics add mass that cannot be entirely offset by the chassis diet. Yet the Revuelto is substantially faster in every meaningful performance metric.

0-100 km/h: 2.5 seconds (compared to the SVJ’s 2.8 seconds)
0-200 km/h: 7.0 seconds (exceptional for any road car)
Top speed: 350 km/h (217 mph)

The electrification more than compensates for the weight increase because the electric motors deliver their torque instantly and precisely. The front torque vectoring system, in particular, provides a level of cornering capability that no previous Lamborghini road car has matched.

Comparison with the Ferrari SF90

The Ferrari SF90 Stradale is the Revuelto’s most direct rival—both are hybrid V12-plus-electric flagship supercars from Italian manufacturers. The comparison is fascinating.

Ferrari uses a twin-turbocharged V8 rather than a naturally aspirated V12, paired with three electric motors. The SF90 offers slightly less system power (1,000 hp vs. 1,015 hp) but achieves a comparable 0-100 km/h time. Where the Ferrari is arguably more technically sophisticated in its integration—particularly in terms of all-electric range—the Lamborghini makes the more emotionally compelling argument: ten naturally aspirated cylinders screaming to 9,500 rpm, combined with the torque vectoring precision of electric drive, wrapped in a body that looks like nothing else on the road. It is a less efficient use of technology, but efficiency was never the point.

Conclusion: Stubbornness as Engineering Philosophy

The Revuelto is a triumph of stubbornness. Lamborghini could have used a V8 turbo hybrid (like Ferrari). They could have gone fully electric. Instead, they spent hundreds of millions developing a brand-new V12 engine specifically to keep the soul of the flagship alive for another generation.

It is heavier than the Aventador, yes. But it is faster — 2.5 seconds to 100 km/h versus 2.8 — sharper in corners due to the front torque-vectoring electric motors, and still powered by a screaming, naturally aspirated, 9,500-rpm V12 producing 825 horsepower on its own before the three electric motors add their 190. That the V12 now has electric assistance is not a compromise; it is how the V12 was preserved when emissions regulations would otherwise have ended it. Lamborghini spent hundreds of millions developing a new engine specifically to keep it alive for another generation. The result is a car heavier than its predecessor that is measurably faster in every metric — a specific outcome that justifies the engineering investment.