Blog

Is the speed of a car equal to the speed of a truck?

Shahad Al Mutairi

June 22, 2025

Read time

Minutes to read

Is the speed of a car equal to the speed of a truck? Cars and trucks share asphalt, but do they also share the same speed. The answer to the question may seem simple at first, but it has some complex details and factors that go beyond just reading the speedometer.

In this article, we will answer this question while discovering the fundamental differences and similarities between the speed of these two types of vehicles, based on scientific and practical foundations to understand the full picture.

The image of a car in our minds is related to speed and launch, while trucks are associated with heavy cargo and relatively slow movement. Does this stereotype accurately reflect reality? Can the speed of a truck outperform the speed of a car? Is the comparison limited to maximum speed, or are there other dimensions that should be considered?

So, the answer to the question of whether the speed of a truck is the same as the speed of a car is not just “yes” or “no”. It is a set of factors and variables that determine the performance of each vehicle on the road, affect the speed of both the car and the truck, and interact together to form the traffic reality we live in daily.

7 factors that affect the speed of a truck and a car

7 عوامل تؤثر على سرعة الشاحنة والسيارة

Engineering design

The first fundamental difference between cars and trucks is the engineering design and purpose of each. Cars are generally designed to be lightweight, highly aerodynamic and equipped with engines aimed at high acceleration and high top speeds. Their design also focuses on transporting a small number of passengers with the utmost comfort and speed possible.

While trucks are designed to transport heavy loads over long distances, this requires a huge and strong chassis, which increases their weight significantly. Their design does not necessarily focus on aerodynamics as much as cars, which increases the air resistance they face.

High-power truck engines are also designed to generate significant torque at low rotational speeds, which helps them move heavy loads, but does not necessarily translate into high top speeds compared to the car's speed.

Engines and power-to-weight ratios

The power-to-weight ratio plays a crucial role in determining vehicle speed. Thanks to their relatively light weight and powerful engines, cars have a high power-to-weight ratio, enabling them to reach high speeds easily.

Although trucks have powerful engines that produce huge torque, their huge weight, especially when fully loaded, significantly reduces the power-to-weight ratio. This means that they take longer to accelerate, and their top speed is often lower than that of cars.

However, technological advancements in the truck industry have led to the emergence of modern trucks with powerful engines and advanced transmission systems, reducing the performance gap somewhat.

Traffic laws that limit speed

Both cars and trucks are subject to traffic laws that set the maximum speeds allowed on different roads. Additional speed restrictions are imposed on trucks in some countries, especially on highways for safety reasons, as heavy trucks need a longer stopping distance and can cause more serious accidents in the event of loss of control.

Many modern trucks are also equipped with electronic speed limiters that are set by manufacturers or transport companies to ensure that drivers comply with maximum speed limits and to improve fuel efficiency. Therefore, these limiters prevent trucks from exceeding a certain speed, even if their mechanical ability allows it.

road safety

It is one of the most important factors that affect our answer to the question of whether the speed of a car is equal to the speed of a truck? Due to its large size and weight, truck accidents can be devastating. Therefore, great emphasis is placed on ensuring that trucks drive at safe speeds suitable for road conditions. This includes not only adherence to speed limits, but also maintaining an adequate safety distance, and driving carefully in bad weather conditions.

Trucks also face unique visibility and maneuvering challenges, requiring drivers to be very careful and drive at speeds that allow them to have full control of the vehicle at all times.

fuel efficiency

Trucks need large amounts of fuel, especially when driving at high speeds, so driving at moderate speeds is an important and essential factor in improving fuel efficiency To reduce operational costs and reduce environmental impact, many carriers require their drivers to stick to specific speeds to maximize fuel efficiency.

Technology and Innovation

The automotive and truck industry has witnessed tremendous technological developments in recent years. It has been equipped with modern technologies including: anti-lock braking systems “ABS”, stability control systems “ESC”, and advanced driving assistance systems “ADAS”, which have contributed to improving the safety and performance of both cars and trucks.

However, the difference between car and truck speed still exists and is likely to remain so for the foreseeable future, due to fundamental differences in the design and purpose of each.

Human behavior

In the end, the speed of any vehicle, whether it is a car or a truck, depends on the behavior of the driver, who can drive at higher or lower speeds than the permissible limits. His behavior may be affected by factors such as mood, pressure, and experience. Therefore, any answer to the question is: Is the speed of a car equal to the speed of a truck? You should take into account this variable factor.

Despite the apparent similarity in the fact that both a car and a truck are means of transportation, different engineering design, power-to-weight ratio, traffic regulations, safety, fuel efficiency, and even driver behavior all make car and truck speed inherently unequal.

The hidden impact of fast cars and trucks on road infrastructure

When we talk about the speed of cars and trucks, our focus is often on the vehicle itself, but we sometimes overlook the silent player in this equation: the road itself. We know that road infrastructure is not just an asphalt tape, but a complex engineering system that is subject to huge and uneven pressures. Variation in the speeds and weights of cars and trucks plays a crucial role in determining its lifespan and maintenance costs:

The Dual Design Challenge

The design of modern roads, especially highways, requires a precise engineering balance to cope with the huge weight of trucks and the high speeds of cars, which calls for strong foundation layers, sturdy bridges and building materials that resist deformation, while ensuring safety for fast vehicles.

Erosion of the right tracks

The tendency of trucks to stick to the right lanes places tremendous pressure on them, which accelerates wear and marks such as grooves and cracks appear more clearly in these tracks.

The effect of braking and acceleration

The impact of trucks is not limited to vertical pressure, but extends to horizontal forces resulting from braking and acceleration, which cause damage to the road surface, especially in areas where stops and starts are frequent.

High maintenance costs

Accelerated wear translates into huge maintenance and repair costs for roads. The damage caused by one truck is equivalent to thousands of cars, making understanding the impact of truck traffic on infrastructure essential for managing resources and designing more sustainable roads.

The effect of the type of load on the speed of the truck

It is not possible to say that all trucks have the ability to travel at high speeds, because the type of cargo greatly affects speed and may exceed engine capacity or general regulations.

For example, hazardous materials require special regulations and very low speeds to ensure safety. Trucks transporting liquid cargo face the risk of liquid churning that affects their stability, requiring slower and smoother driving to avoid accidents.

For live livestock carriers, driving should be gentle and at moderate speeds to ensure the protection of animals and reduce stress on them. Large or very heavy loads also require special permits and often travel at very low speeds and may be accompanied by accompanying vehicles to warn other vehicles. These differences and others confirm that understanding the type of cargo is necessary to determine the safe and appropriate speed of the truck, ensuring road safety and cargo alike.

It is not only the speed of vehicles that is felt on the road, but the hidden impact it has on its age and structure. Every heavy load and every sudden acceleration translates into silent wear and costs that are calculated at the expense of infrastructure sustainability.

Specialized vehicles and their role in comparing speeds

Also, don't forget the role of specialized vehicles that play unique roles in knowing the difference between the speed of a truck and a car. For example, there are fire and ambulance vehicles, despite their large size, are designed to travel at high speeds to achieve a relative speed of response.

On the contrary, cleaning trucks and cement mixers operate at very low speeds and stop frequently. You can also notice the clear difference between sports cars that show maximum speed and race trucks designed to achieve maximum power and speed in controlled environments.

In crowded urban environments, small electric city cars are flexible and efficient, while distribution trucks focus on efficient delivery of goods within short distances at relatively low speeds.

It is clear from the above that each specialized vehicle has a role and limitations that determine its behavior on the road, which calls for a broader understanding of infrastructure planning and traffic management.

The impact of media and popular culture on perceptions of the speed of cars and trucks

The culture of society and the media greatly affects our perceptions of the speed of cars and trucks. Most ads depict modern cars as symbols of speed and power. Scenes of chases or fast driving on open roads show us the attraction of high performance, which instills the idea that cars are synonymous with high speeds and excitement.

On the other hand, the portrayal of trucks in the news is linked to accidents or traffic congestion, which reinforces the stereotype of them as slow or dangerous vehicles. This contradiction may affect the behavior of drivers who drive cars and feel impatient towards trucks, as they expect them to be slow to hinder their movement or cause danger, without regard to the technical restrictions and safety standards that govern truck driving. Here we are in dire need of balanced media awareness that reflects the operational reality of each type of vehicle in order to promote safe coexistence on the roads.

While advertising makes cars an icon of speed and freedom, and depicts trucks as slow obstacles, a biased public perception forms that ignore the reality of operation and safety, which calls for more aware and fair media in representing all vehicles.

In the end, we hope to have answered a question: is the speed of a car equal to the speed of a truck? In theory, cars can far exceed the speed of trucks, but scientifically, as we have seen, the speed of both is affected by different factors such as: engineering design, traffic laws, safety considerations, and fuel efficiency.

We may notice that cars and trucks travel at similar speeds on highways. However, it is important to remember that trucks need a longer stopping distance and have less maneuverability.

So, motorists should always be careful near trucks, and give them enough space.

The exact scientific answer to the question is: Is the speed of a car equal to the speed of a truck? It makes us drive our vehicles more consciously and responsibly, and contributes to increasing the safety of our roads for all. It goes beyond mere numbers, to go deeper into understanding complex traffic dynamics.