The Most Powerful Engines For Every Cylinder Count

Discussions about the most powerful engine have become increasingly popular of late, what with automakers making wild claims about canceling internal combustion in the pursuit of battery power. But this is a broad topic, one loaded with angles and opinions, facts and fiction. Today, we shall lay out the most powerful engine ever seen in a car - by cylinder count. Not every count, mind you, just the biggies - three, four, five, six, eight, 10, 12, and 16-cylinder engines to be exact.

If and when the internal combustion engine (ICE) dies out, some of these mills could end up as the most powerful engines of all time.

For the purpose of this article, only the outputs of a combustion engine are considered, not the total combined outputs of any hybrid configurations. Additionally, the engine must be from a production vehicle that is street-legal. Engines have been ranked in order of their cylinder count, with the smallest appearing first.

This is the pinnacle of lifted four-door V8 power.

Vehicle

Koenigsegg Gemera

Power

592 HP

Torque

443 LB-FT

0-60 MPH

Unknown

Though the Koenigsegg Gemera ultimately went into production with a V8, the "Tiny Friendly Giant" inline-3 that was developed for it is ready to go and has not been officially shelved. So, it makes this list. Plus, it's a staggering engineering achievement. Making nearly 200 horsepower per liter, this twin-turbo inline-3 features Koenigsegg's trick Freevalve technology.

I am proud to be part of the development team and lead this exciting company. To be able to say that we have Freevalve in the Koenigsegg Gemera is truly a milestone for both Freevalve and Koenigsegg.

- Christian von Koenigsegg, CEO of Koenigsegg

Rather than a traditional camshaft, it has individual electro-pneumatic actuators - for every single intake and exhaust valve. This enables tremendous precision and is just one way the ICE portion of this powertrain makes so much juice. Factor in the hybrid components and this most powerful of three-cylinder engines puts out a total of 1,381 hp and 1,364 lb-ft of torque.

Vehicle

Mercedes-AMG C63 S E Performance

Power

469 HP

Torque

402 LB-FT

0-60 MPH

3.3 Seconds

Between the chillcast aluminum crankcase, closed-deck construction, forged steel crankshaft, and forged aluminum pistons, Mercedes' M139 four-cylinder is easily one of the strongest engines on this list. Good thing as it spins up 469 hp in the latest C63 S E Performance from the boosted 2.0L ICE. The Ford EcoBoost found in the Dallara Stradale comes close with 400 hp, but it's ultimately bested by the Benz.

Engineers worked to achieve power delivery akin to natural aspiration via "torque shaping" where the twist increases at higher rpm and revs more freely in that range. The M139 powers a host of Mercedes-Benz vehicles, but the C63 has the highest horsepower variant of this engine that, when combined with the hybrid system, boasts 671 hp and 752 lb-ft of torque.

In performance, oh yeah. In our hearts? Maybe.

Vehicle

Donkervoort D8 GTO Individual Series

Power

435 HP

Torque

413 LB-FT

0-60 MPH

2.5 Seconds (Estimated)

Audi has a reputation for building legendary five-cylinder engines and the 2.5L turbocharged inline-5 found in the current RS3 is its most potent to date. However, boutique Dutch automaker Donkervoort has pulled even more power from this relative oddball of an engine. In the RS3, output comes in at 401 hp, but in collaboration with Abt Sportsline, Donkervoort's GTO Individual Series roadster turns that up to 435 hp.

Other engine concepts may have their advantages over the five-cylinder engine, but they can’t match the distinctness that is completely its own.

- Armin Pelzer, head of Powertrain Application Development at Audi

It's certainly a solid engine to start with as it has won nine Engine of the Year awards since 2010. Perhaps the most notable aspect of these five-cylinder engines is the sound. Due to the 1-2-4-5-3 firing order and odd number of cylinders, the resultant harmonic frequencies create a sound unique to this engine.

Vehicle

Porsche 911 GT2 RS (991.2)

Power

690 HP

Torque

553 LB-FT

0-60 MPH

2.7 Seconds

No powerful engine list would be complete without a flat-6-powered Porsche. Of all the mighty rear-mounted six-pots the German automaker has created, the 3.8-liter twin-turbo found in the 991.2-generation 911 GT2 RS is the mightiest six-cylinder engine ever. It makes 690 hp and 553 lb-ft of torque, huffs on 22.5 psi of boost, has special pistons, and a compression ratio of 9.0:1.

Capable of spinning up to 7,200 rpm, the GT2 RS mill also features a trick charge air cooling system. Under extreme loads, the heat exchangers are automatically hosed down with distilled water from a 1.3-gallon tank. Porsche says it can reduce the gas temperature by up to 68 degrees Fahrenheit, which ensures a thermally stable supply of charge air in even the most extreme conditions.

Vehicle

Hennessey Venom F5

Power

1,817 HP

Torque

1,193 LB-FT

0-60 MPH

Unknown

Texas-based Hennessey Special Vehicles has long built epic engines, but the Fury V8 found in the Venom F5 is currently one of the best. Starting with a GM LS7 V8, this 6.6-liter brute features aluminum cylinder heads with canted titanium intake valves, forged steel connecting rods, and a cast iron block.

The F5 engine has a very broad power band with over 1,000 lb-ft of torque available from 2,000 to 8,000 rpm. Give it the full throttle and it’s the most furious engine that we have ever built. Thus, we gave our F5 engine a special name: Fury.

- John Hennessey

Capable of an 8,500 rpm redline, the Fury also sports dual Precision ball-bearing turbos with 3D-printed titanium compressor housings. Inconel exhaust valves are just more of the many juicy engineering highlights of this staggering ICE achievement. Riding on an all carbon-fiber chassis, the Fury-powered Venom is capable of more than 310 mph, according to Hennessey.

Vehicle

SRT Viper

Power

645 HP

Torque

600 LB-FT

0-60 MPH

3.5 Seconds

Lamborghini may own the 10-cylinder engine domain today, but it is the enormous 8.4-liter V10 that sat under the discontinued SRT Viper's long hood that claims the most powerful version of all time. Though not the most powerful engine Dodge has ever made, it is up there. More commonly known as the Dodge Viper, a corporate renaming toward the end of its life happened at the same time, this naturally aspirated monster topped out at 645 hp and 600 lb-ft of torque.

Featuring a 90-degree V configuration, 10.2:1 compression, and an aluminum alloy block with cast iron liners, the Viper V10 is a legend. Interesting aspects include an ultra-high-flow lightweight composite intake manifold, high-strength forged pistons, sodium-filled exhaust valves, and a mid-front mounting position.

Vehicle

Zenovo Aurora

Power

1,250 HP

Torque

1,254 LB-FT

0-60 MPH

2.2 Seconds (Estimated)

Danish carmaker Zenovo recently laid claim to the most powerful V12 engine on the planet with its new Aurora hypercar. Developed in collaboration with MAHLE Powertrain, the 6.6-liter V12 is strapped with four turbochargers in a hot-V configuration, uses MAHLE's Jet Ignition system, and can scream up to 9,800 rpm. As a hybrid, it also comes with a choice of two or three electric motors.

As an automobile enthusiast and industry professional, I have always strived to achieve the pinnacle of powertrains in the form of a V12 engine.

- Jens Sverdrup, Chairman of The Board and Chief Commercial Officer

As any self-respecting billionaire car enthusiast will tell you, more is always better and, with the triple motor setup, the Aurora makes a combined 1,850 hp - in case 1,250 wasn't enough. A ground-up design, this V12 has dry-sump lubrication, variable-valve timing, and weighs less than 575 pounds due to all-aluminum construction.

Vehicle

Bugatti Centodieci

Power

1,600 HP

Torque

1,180 LB-FT

0-60 MPH

2.2 Seconds

From Bugatti comes arguably the most outrageous engine on this list - the 8.0-liter quad-turbo W16 honker that has been in production since the Veyron laid waste to top speed records 20 years ago. In the Centodieci - which counts as a production vehicle since Bugatti built 10 copies - this 16-cylinder engine makes a nutty 1,600 hp and 1,180 lb-ft of torque.

Who would have thought we would continue to develop the W16 for so long and so impressively?

- Christophe Piochon, Bugatti Automobiles President

No hybrid qualifiers here, just a wild piece of automotive engineering capable of pushing the latest models beyond 300 mph. Essentially a pair of V8 engines sharing a crankshaft, Bugatti's W16 was - and still is - the only 16-cylinder engine used to power a modern car.

Sources: Koenigsegg, Mercedes-Benz, Audi, Donkervoort, Porsche, Hennessey, Dodge, Zenovo, Bugatti

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