#Electric Cars vs Combustion Engine Cars: Driving Difference

23 / October 2024
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Electric Cars vs Combustion Engine Cars: Driving Difference

Seletron Performance

The Perceived Difference in Driving Electric Cars and Combustion Engine Cars

In recent years, electric cars have gained increasing popularity, becoming an increasingly common choice for drivers worldwide (although in some countries, falling short of the expectations of governments and manufacturers). This shift comes with several significant differences compared to traditional internal combustion engine cars, especially in terms of the driving experience. One often underestimated aspect is sound. Electric cars and those with internal combustion engines produce distinctive sounds that influence the driver's perception and the overall driving sensation. In this article, we will discuss the differences between the sounds generated by these two types of vehicles and how they affect the overall driving experience.

One of the main sound aspects that distinguishes electric cars from internal combustion cars is the absence of engine noise.

Internal combustion cars produce a characteristic sound derived from engine operation and exhaust systems. This sound can vary greatly depending on the type of engine, modifications, and vehicle design. For many car enthusiasts, engine noise is a fundamental part of the driving experience. From acceleration to deceleration, the engine sound provides audio feedback that helps the driver perceive the vehicle's performance. In contrast, electric cars are much quieter. This can be disorienting for those accustomed to the roar of a combustion engine.

The exhaust system is another significant aspect.

In combustion cars, the sound coming from the exhaust can range from a subtle hum to a powerful roar, depending on the system's design and engine specifications. Enthusiasts often modify their exhaust systems to achieve a more aggressive or melodic sound, contributing to a more engaging driving experience (see our EVC-SPORT®). Electric cars, on the other hand, do not have a traditional exhaust system, so the sound they produce is radically different (mainly noise from the drivetrain and PWM inverters). Although some modern electric cars are trying to replicate a more "sporty" sound through speakers or artificial sounds, many drivers find this lack of noise disorienting. The absence of exhaust noise also makes it more challenging to understand driving dynamics, such as the moments of acceleration and deceleration.

The issue of intake sound is another element to consider.

In internal combustion cars, air intake into the engine generates a sound that contributes to the overall driving experience. This sound, often described as a "growl," is perceived as a signal of the vehicle's performance, and many drivers find it satisfying to hear the air flowing into the engine (in addition to the turbo whistle, if present). In electric cars, there is no traditional intake process, as the electric motor does not require air to operate. This means that electric car drivers do not experience the same type of sound feedback, which for many is a crucial element of connection with the vehicle. The lack of intake sound can make drivers feel disconnected from the vehicle's performance.

Another factor contributing to the perception difference is the sound of combustion.

The combustion process in an internal combustion engine generates a series of sounds that vary based on several factors, including the type of fuel used, engine design, number of cylinders, and exhaust technologies. These sounds can evoke strong emotions, from the thrill of power to nostalgia for classic vehicles. Enthusiasts often associate the sound of combustion with memorable driving experiences. In contrast, electric motors operate quietly and smoothly, without the additional noises associated with combustion. This difference can lead to a less exciting driving experience for some, while others may appreciate the tranquility and serenity of electric cars.

The silence of electric cars also presents challenges, as the lack of noise can reduce pedestrian and cyclist awareness of the presence of electric vehicles. For this reason, many regulations require electric cars to emit sounds at low speeds to ensure road user safety.

The sensation of acceleration is another aspect that changes drastically between the two types of vehicles.

Electric cars are notably capable of delivering instant and smooth acceleration, thanks to torque being available immediately. This rapid acceleration is often accompanied by an almost surreal silence, which differs significantly from the acceleration of a combustion engine. In the latter case, the driver perceives a crescendo of sounds as the engine gains revs, creating a strong emotional connection with the vehicle. Many drivers appreciate this auditory progression and the energy it conveys, making each journey a more engaging experienceRead this article which discusses how to increase power and torque and explains the concepts of engine torque and engine power.

In terms of driving comfort, electric cars offer a notably different experience.

The quietness of electric motors contributes to a much quieter cabin, reducing engine and exhaust noise. This aspect can enhance comfort during long journeys, allowing drivers and passengers to converse easily or listen to music without distractions. However, some drivers may feel less engaged in driving due to the lack of sound feedback, making the driving experience less exciting compared to a combustion car.

The difference in sound between electric cars and combustion engine cars also impacts brand perception and vehicle identity.

Many historic automotive brands have built their reputations around the characteristic sound of their engines. Sports cars, in particular, are often designed to produce an engaging sound that aligns with drivers' expectations (see, for example, Ferrari, Lamborghini, Maserati—ADD LINK TO SHOP CATEGORIES). With the rise of electric cars, manufacturers are trying to find ways to communicate power and performance without the classic roar of a combustion engine. Some brands are investing in artificial sounds, designing audio that simulates the sensations of a traditional engine to keep the excitement of the driving experience alive.

The perceived difference in driving electric cars compared to combustion engine cars is significant and complex.

The sound of the engine, exhaust system, and combustion profoundly affects the driving experience and the driver's emotional connection to the vehicle. While some may appreciate the serenity of electric cars and their silent acceleration, others may miss the characteristic sound feedback of combustion cars. With evolving technology and the growing adoption of electric cars, the perception of sound is likely to continue evolving, ushering in a new era of driving experiences.

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