Which is better, V10 or V12 engine?

[SilasAnn]

For most high-performance cars and luxury vehicles, a V12 engine is generally superior due to its unparalleled smoothness, higher power potential, and prestige. However, the V10 often wins in applications where high-revving responsiveness and reduced weight are critical, such as in exotic supercars and some racing contexts. The choice isn't about one being universally better, but which is better suited to the vehicle's purpose and the driver's priorities.

A V12's primary advantage is its perfect primary and secondary balance. This inherent mechanical balance results in exceptionally smooth operation with minimal vibration, a hallmark of luxury sedans like the Rolls-Royce and high-end GTs from Ferrari and Aston Martin. This smoothness enhances refinement and passenger comfort. In terms of power, the additional two cylinders and greater displacement potential allow V12s to produce immense torque and horsepower, often exceeding 600-800+ horsepower in modern iterations, as seen in models like the Mercedes-AMG S 65.

Conversely, a V10 engine, while not perfectly balanced, is often lighter and more compact. This allows for a lower center of gravity and better weight distribution in mid-engine supercars. The design is renowned for its ability to rev freely and deliver thrilling, responsive power. The legendary Lamborghini Huracán's 5.2L V10, for example, revs to 8,500 rpm, offering a visceral and engaging driving experience that many enthusiasts prefer over the more subdued power of a V12.

In practical terms, V12 engines are typically more complex, heavier, and less fuel-efficient. They represent the peak of luxury and grand touring. V10s, while still complex, offer a more focused, high-strung performance character. For daily driving and supreme comfort, the V12 is better. For track-focused agility and an exhilarating soundtrack, the V10 holds an edge.

Feature	V12 Engine	V10 Engine
Smoothness & Refinement	Excellent (inherently balanced)	Very Good (requires balance shafts)
Power & Torque Potential	Higher, especially torque	High, often peakier power band
Weight & Size	Heavier and larger	Lighter and more compact
Typical Application	Luxury Flagships, Grand Tourers	Exotic Supercars, Historical F1
Character	Effortless, creamy power delivery	High-revving, aggressive, responsive
Complexity/Cost	Highest	Very High

[Aliyah]

As a mechanic who’s worked on both, my take is simple: it’s about the feel. The V12 is like a silent powerhouse—everything happens so smoothly you barely hear it working. The V10 is the screamer. You feel every vibration, hear every intake roar. For a daily driver you want to feel pampered in, give me the V12. For a weekend toy that gets your heart racing, the V10 is pure therapy. The V12 might be more reliable in the long run simply because it’s not stressed as hard, but those V10 exhaust notes are unforgettable.

[SilasFitz]

From an engineering perspective, the debate centers on trade-offs. The V12’s balance is a fundamental advantage, reducing wear on components and allowing for silken power delivery. The V10 is a compromise between the compactness of a V8 and the power of a V12, but it introduces secondary imbalances. Manufacturers counteract this with balance shafts, adding complexity. The choice materializes in design goals: a V12 prioritizes refinement and flagship status, often paired with all-wheel drive to handle its massive torque. A V10 prioritizes packaging and rev-happy performance, frequently found in mid-engine layouts where saving every kilogram matters. You’re choosing between a masterpiece of calm supremacy and a masterpiece of controlled fury.

[LaAnthony]

I was choosing between a used Audi R8 (V10) and a Ferrari 456 (V12). It came down to emotion versus comfort. The V10 in the R8 felt explosive, urgent, and raw. It was an event every time. The V12 Ferrari was shockingly quiet and composed until you looked at the speedometer. It was devastatingly fast but in a way that felt almost too easy. I chose the R8 for the thrill. If my priority was long-distance comfort or making a statement of understated power, the V12 would have won. Test drive both; your gut will tell you which “better” means for you.

[SanNatalie]

Let's cut through the specs. Think about what you’ll actually use the car for. Do you envision grand, continent-crossing tours in sublime comfort, where the journey itself is the luxury? The V12 is your engine. Its smooth, tireless nature is unmatched for that. Or are you dreaming of canyon runs, track days, and the addictive sensation of an engine screaming towards a redline? Then the V10’s sharper response and lighter weight are what you need. Forget “better” in a vacuum. In the real world, the V12 excels as a supreme cruiser and status symbol. The V10 excels as a driver’s tool and an emotional catalyst. Your lifestyle picks the winner.