Why Does Engine Placement Matter in a Car?
The engine placement is not just about finding the right location to mount the engine. There’s much more significance to the location of the engine in a car. Whether it’s a front, mid or rear, each configuration affects the key aspects of a car. Here are the key aspects of a car that are influenced by the placement of the engine.
- Interior space (rear passengers)
- Traction
- Steering dynamics
- Acceleration
- Braking performance
- Weight distribution
- Serviceability
- Boot space
If you are wondering how exactly these parameters are affected by the engine's location in a car, we will cover all these things in the following sections of this article.
Front, Mid and Rear-Engine Cars
The names are self-explanatory; they describe the location of the engine in a car. Refer to the points below for a better understanding of these terms.
- A front-engine vehicle has an engine at the front of the car (in front of the driver).
- In mid-engine cars, the placement shifts to the rear of the driver or, say, behind the front seats.
- Similarly, in a rear-engine car, the engine moves further away from the front, that is, behind the rear passenger seats.
Front vs Mid vs Rear-Engine Cars: Comparison Table
If you're still not sure which engine configuration is for you, this table provides you with a brief side-by-side comparison. It points out the main differences in performance, room, and maintenance between front, mid, and rear-engine vehicles. This will assist you in knowing which type is practical for daily driving and which is designed solely for performance.
Feature | Front-Engine | Mid-Engine | Rear-Engine |
Interior Space | Excellent | Poor (no rear seats) | Moderate |
Boot Space | Good (rear boot) | Usually split (small front) | Poor |
Handling | Average | Excellent | Good |
Traction | Front-wheel (moderate) | Balanced (best) | High (rear-wheel) |
Maintenance Cost | Low | High | High |
Used in Cars Like | Hatchbacks, SUVs, Sedans | Sports cars | Porsche 911, Tata |
The following sections will give you a detailed picture of each type of engine placement.
Front-Engine Cars
It is one of the most common configurations in the world of cars. It is a configuration where the engine is at the front of the driver. To be precise, the engine is mounted above the front axle. You can find this arrangement in almost all commuter passenger cars. Some of the highlights of front-engine cars are affordability, comfort, practicality and ease of maintenance.
List of Front-Engine Cars in India
Almost all the passenger cars in India, hatchbacks, sedans, SUVs (Sport Utility Vehicles) and MPVs (Multi-Purpose Vehicles), are front-engine vehicles. So, you can assume that all the mass-market cars in the country have the front-engine layout.
Advantages of Front-Engine Cars
Here are some of the pros of the front-engine arrangement in cars.
- The front-engine vehicles are easy to drive. Since the engine's weight is on the front wheels, there's no chance of understeer. It can only oversteer, which is easy to manage.
- The layout offers ample space for passengers. It also results in enhanced boot space.
- Generally, front-engine cars are front-wheel drive vehicles. So, it eliminates complex mechanical parts. The overall arrangement is compact and also cost-effective.
- The cooling system also works efficiently in a car with a front-engine. When the vehicle moves forward, the air helps with efficient engine cooling.
- Lastly, the engine is easily accessible, providing easy service and maintenance.
Disadvantages of Front-Engine Cars
Below are some of the cons of cars with front-engine configuration.
- Front-engine cars have a high centre of gravity due to the poor weight distribution.
- They do not offer superior high-speed handling.
- High body roll due to the high centre of gravity.
Mid-Engine Cars
It is an arrangement in which the engine is behind the driver’s seat. Now, you may be wondering what happens to the rear passenger seats. This arrangement is used in sports cars with only front seats. Hence, the engine is between the rear axle and the driver. Some of the main highlights of mid engine cars are uniform weight distribution and impressive handling.
List of Mid-Engine Cars in India
Here’s the list of cars with a mid-engine arrangement.
- Audi R8
- BMW i8
- Ferrari 488 GTB
- Ferrari F8 Tributo
- Lamborghini Aventador
- Lamborghini Huracan Evo
- Porsche 718 Boxster Cayman
Advantages of Mid-Engine Cars
Here are the pros of mid-engine cars.
- The cars deliver superior handling due to the balanced weight distribution.
- A mid-engine car has equal weight distribution, resulting in a low centre of gravity. Hence, the high-speed handling is excellent.
- The cars have enhanced traction and braking performance due to the balanced weight distribution.
Disadvantages of Mid-Engine Cars
Below are the cons of mid-engine cars.
- There's no room for rear passenger seats.
- The mid-engine arrangement is complex and expensive.
- Maintenance costs are high due to complex repair work.
- The engine is behind the driver. Hence, there's no engine to absorb the frontal impact in case of an accident.
Rear-Engine Cars
The rear engine cars are mounted above the rear axle or wheels in this type of arrangement. Generally, rear-engine vehicles have a rear-wheel-drive system. This configuration is commonly seen in performance sports cars. Some of the highlights of rear-engine cars are better initial acceleration, superior handling and high-speed stability.
List of Rear-Engine Cars in India
Rear-engine cars are rare in India. Currently, Porsche offers rear-engine cars on the market. The Tata Nano also used the same layout, but it is no longer in production.
Advantages of Rear-Engine Cars
Here are some of the pros of cars with rear-engine cars.
- They offer excellent handling due to good traction.
- Since the engine's weight is on the rear wheels, the traction is high. Hence, the initial acceleration is also better (for rear-wheel-drive cars).
- The power delivery and steering are split between the rear and front wheels. Hence, they do not undergo high loads as in a front-engine car.
Disadvantages of Rear-Engine Cars
Below are some of the cons of rear-engine cars.
- Rear-engine cars are prone to oversteer as the rear wheels get all the power.
- Like mid-engine cars, the rear-engine arrangement is complex, and costs are high.
- A complex engine cooling system since the engine is in the back of the car.
- The maintenance and repairs are expensive.
- The engine eats up the boot space at the rear.
- The danger of a heavy frontal impact is high in case of an accident due to the absence of an engine at the front.
Also, read: CNG or petrol car, which is better
Frequently Asked Questions