17 Weirdest Engines In Automotive History

Engines are the heart and soul of any automobile, driving both performance and innovation. However, not all engines are created equal. Some are downright quirky! From wildly unconventional designs to those that defy the norms of engineering, the automotive world has witnessed engines that are as bizarre as they are brilliant.

Buckle up as we embark on an eccentric journey through the labyrinth of automotive history, uncovering the 17 weirdest engines that have ever graced the roads.

1. Mazda Wankel Rotary Engine

Mazda Wankel Rotary Engine
© Popular Mechanics

What if I told you an engine could spin rather than reciprocate? Mazda’s Wankel Rotary Engine does just that! Its three-sided rotor replaces traditional pistons, creating a smooth, high-revving experience. Though efficient, it guzzles fuel like a thirsty camel.

Ever wondered why it’s not more common? Blame emissions! This compact powerhouse was the beating heart of icons like the Mazda RX-7. Is it weird? Absolutely. But isn’t that part of its charm?

2. Chrysler Turbine Engine

Chrysler Turbine Engine
© Drive

If engines could sing, the Chrysler Turbine Engine would be an opera star. Humming like a jet, it powered a limited number of cars in the 1960s. Fueled by anything from peanut oil to perfume, it was gloriously versatile!

But why didn’t it take off? High production costs and exhaust heat hotter than a summer barbecue spelled its doom. What a pitty!

3. Honda CVCC Engine

Honda CVCC Engine
© Curbside Classic –

Does a small engine pack a punch? Absolutely, if it’s Honda’s CVCC Engine! Debuting in the ’70s, it met emissions without a catalytic converter. Ingenious!

However, the magic lay in its pre-chamber, igniting a leaner mix. This quirky tech made it the eco-hero of its time. Even Snape would approve of its cleverness. Small but mighty, the CVCC was a game-changer that kept competitors on their toes.

4. Napier Deltic Engine

Napier Deltic Engine
© Diesel Army

Meet the Napier Deltic! Born for naval glory, it looked like a mechanical puzzle.

Its three banks of cylinders revealed a love triangle of engineering brilliance. Guzzling fuel like a frat party, it powered British rail and sea marvels.

Though not suited for cars, its roar could wake the Kraken. Hence, it’s a legend in its own peculiar right.

5. Volkswagen VR6 Engine

Volkswagen VR6 Engine
© The Autopian

How does one fit six cylinders into a tiny space? The answer is Volkswagen VR6, the master of compactness. Its staggered cylinder layout achieved V6 power in an inline-six footprint.

Though its design was a brainteaser, the driving joy it provided was unmistakable. This engine’s uniqueness didn’t stop at its layout. It became the heartbeat of hot hatches, making VW lovers swoon.

6. Subaru Boxer Engine

Subaru Boxer Engine
© Sport Subaru

Flat as a pancake but powerful as a locomotive. That’s Subaru’s Boxer Engine! With pistons punching horizontally, it creates a low center of gravity.

This engine’s symmetry offers smoothness akin to a waltz. Why not more common, though? Complexity and space.

However, its cult-like following makes it a darling of rally enthusiasts. Subaru’s Boxer is proof that flat isn’t always boring!

7. Saab Two-Stroke Engine

Saab Two-Stroke Engine
© Silodrome

Where’s the smoke? In the ’60s, Saab’s two-stroke engine puffed its way into hearts with simplicity and charm.

Lighter than a cloud, it offered performance like a sprinter. But alas, emissions legislation blew the whistle on its run.

Though it retired, its legacy remains a nostalgic whisper of Sweden’s innovative spirit. A quirky marvel, fondly remembered.

8. Tatra V8 Air-Cooled Engine

Tatra V8 Air-Cooled Engine
© Reddit

Ever met an air-cooled V8? Say hello to Tatra’s innovation! The 1930s brought this engine to Czechoslovakian roads.

Its rear-mounted design was as unconventional as a Picasso painting. However, overheating issues meant it wasn’t everyone’s cup of tea.

Still, it captured the imagination of engineers and spy novelists alike. A symbol of daring design, etched in history.

9. Ford Flathead V8

Ford Flathead V8
© Wikipedia

With a heart as iconic as a rock ‘n’ roll legend, the Ford Flathead V8 revolutionized the 1930s.

Simple, robust, and ready to rumble, it democratized power for the masses. Unlike highbrow engines, it was the working class hero.

Though its performance was surpassed, its legacy is etched in hot rod culture. A flathead, but never flatlined!

10. Bugatti W16 Engine

Bugatti W16 Engine
© Bugatti Newsroom

What has 16 cylinders and screams luxury? Bugatti’s W16! An engineering marvel, it powers the Veyron with audacious grandeur.

Built like two V8s in a cozy embrace, it packs a punch stronger than a superhero squad.

While it guzzles fuel like a hungry dragon, its exclusivity is a testament to opulence. A mechanical symphony for the elite.

11. Chevrolet Corvair Engine

Chevrolet Corvair Engine
© MotorTrend

Why rear-engine and air-cooled? Chevrolet dared with the Corvair. The 1960s saw this compact wonder challenge conventions.

However, its handling was as slippery as an eel, sparking controversy and headlines.

Though imperfect, it remains a vintage gem, its quirks cherished by classic car aficionados. Sometimes weirdness wins hearts!

12. Toyota 2JZ Engine

Toyota 2JZ Engine
© Newparts.com

Ever heard of an engine that’s a pop culture icon? Meet Toyota’s 2JZ, synonymous with speed and fury.

Built like a tank, it dominated street races and cinema screens alike. Its robust design made it the darling of tuners.

Though its heyday has passed, its legend lives on, roaring in the hearts of car enthusiasts. More than metal, it’s myth.

13. Lancia V4 Engine

Lancia V4 Engine
© Wikipedia

If compact is clever, the Lancia V4 is Einstein. This space-saving marvel dazzled the car world by fitting four cylinders into a V shape.

Despite its brilliance, it was as temperamental as an artist. Maintenance woes kept it from widespread fame.

Yet, it remains a beloved oddity for car historians, a testament to Italian flair and ingenuity.

14. Citroën 2CV Air-Cooled Engine

Citroën 2CV Air-Cooled Engine
© Revs Institute

Quirky as a mime, the Citroën 2CV’s air-cooled engine is a French classic. Designed for rural simplicity, it trotted through fields with poise.

Its cooling system was as minimalistic as a Parisian café, yet effective. Although slow, it was endearingly enduring.

Its charm is timeless, an embodiment of French practicality and whimsy.

15. Porsche Flat-Six Engine

Porsche Flat-Six Engine
© Porsche Press Database

Flat-out fabulous, Porsche’s flat-six engine is a rear-mounted masterpiece. Its unique configuration grants stability and thrills alike.

The sound, a symphony for petrolheads, is as distinct as a fingerprint. However, mastering it requires finesse.

This engine is a legend, a forever symbol of performance and prestige. Flat-six heaven for driving enthusiasts!

16. Rolls-Royce Merlin Engine

Rolls-Royce Merlin Engine
© National Air and Space Museum

Does an engine win wars? Ask the Rolls-Royce Merlin, the airborne hero of WWII. Its roar ensured Allied supremacy.

Crafted with precision, it powered Spitfires with valiant vigor. Today, it’s celebrated in airshows, a flying legend.

Its legacy is as vast as the skies it once conquered. An engine, a history-maker, forever revered.

17. Ariel Square Four Engine

Ariel Square Four Engine
© Bike EXIF

What’s square yet roars? The Ariel Square Four motorcycle engine, of course! This unique setup wowed riders with its smoothness.

Though cooling challenges loomed, its design was admired by enthusiasts and collectors alike.

Its blend of innovation and nostalgia captures the spirit of motorcycling in a bygone era. A squared circle of delight!