Why Are Big Engines Disappearing?

A Deep Look at the Extinction of V12 and V8 in Modern Cars

Introduction

For decades, V8 and V12 engines were the thunderous heartbeat of performance cars. Their roar could shake streets and stir emotions.
Today, however, these giant engines are fading from the automotive world.
The big question is: Why are these legendary engines disappearing?

The answer goes far beyond fuel consumption. It involves global laws, economics, technology, and a total shift in the future of mobility.

1. Emission Regulations: The Main Executioner

Europe, China, the United States, and even Gulf countries are adopting strict emission laws.
Large engines like V8 and V12 burn more fuel and release far more emissions.
Automakers now face a choice: reduce emissions or pay enormous fines.

More cylinders mean more pollution, and the world no longer tolerates that.

2. High Production and Maintenance Costs

Bigger engines are more expensive in:

• Materials

• Manufacturing

• Fuel usage

• Maintenance

In a time where companies aim to cut costs and increase efficiency, building giant engines makes less financial sense.

3. Small Engines Became Powerful Enough

Thanks to turbocharging, twin-turbo systems, and advanced fuel injection:

• Four-cylinder engines can now produce V6-level power

• V6 engines can match older V8 engines

Similar performance with less fuel and fewer emissions.
Turbo technology rewrote the rules.

4. The Electric Era Is Rising

Electric cars offer:

• Instant torque

• Lightning-fast acceleration

• Low maintenance

As batteries improve, investing in huge gasoline engines looks risky and outdated.

5. The New Generation Doesn’t Prioritize Engine Sound

Older generations adored the roar of a V8.
Today’s buyers care more about:

• Quiet cabins

• Technology

• Low fuel consumption

• Affordable ownership

Even brands like Mercedes and Audi reduced their large-engine production due to declining demand.

6. Big Engines Are Heavy

V8 and V12 engines come with extra weight, which affects:

• Fuel efficiency

• Handling

• Acceleration

• Stability

Modern cars aim to be lighter and more responsive, making heavy engines a disadvantage.

7. Big Engines Survive Only in Special Categories

They’re not fully extinct, but now limited to:

• Supercars

• American muscle cars (though even these are fading)

• Ultra-luxury models

Their prices rise because production became rare and exclusive.