• High-Performace Car Terminology

    High-Performance Car

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09 April 2020

Have you ever been confused when encountering technical performance car terminology? When talking about high-performance cars and car racing, you might stumble upon unfamiliar technical terminologies and definitions. Terms like ECS, eLSD, ESC, rev-matching, active exhaust, and launch control may sound complicated and intimidating at first, but we’re here to explain some common high-performance car terms so you can fully understand their exciting features.

ECS – Electronic
Controlled Suspension

An ECS system ensures a smooth drive and better handling even in challenging driving conditions. The computer-controlled system improves performance and adapts to road conditions by adjusting the car’s suspension and modifying the shocks and struts.

For example, the Hyundai i30 N sports an ECS with four variable dampers that are mounted on the independent four wheels. With its lower and firmer suspension and the electronically controlled dampers, the car automatically adjusts its damping force based on speed, driver input, and road condition. This enables superior handling and body control despite harsh driving conditions on the racetrack.

Electronic Limited-slip

A limited-slip differential (LSD) assures that each wheel receives sufficient torque to prevent slippage. In contrast to a limited-slip differential, an open differential does not control the amount of torque each wheel receives. Thus, in case one wheel doesn’t have enough traction, all the torque is transferred to the wheel with no traction, while the other wheels receive almost no torque which can lead to slippage or the car not being able to drive.

An electronic limited-slip differential (eLSD) uses an electronic control unit to monitor input from wheel sensors to accurately identify when a certain wheel needs extra torque to enhance grip. Hence, an eLSD improves handling during cornering and high-speed driving on the racetrack, as well as during difficult driving conditions such as ice and snow. Generally, an eLSD has the same purpose as a regular LSD but provides higher speed and accuracy. The speed and accuracy of an eLSD is especially important on the racetrack where milliseconds decide about wins and losses.

As an example, the i30 Fastback N’s N Corner carving differential is an eLSD that enhances the grip of the wheels to deliver maximum power on the road while increasing the maximum cornering speed.


Rev-matching is used when down-shifting with manual transmission vehicles to ensure a smooth transition between gears. If you’ve driven a manual transmission car before, you might have noticed the unpleasant experience of the car revolting and bucking when you downshift while the engine is spinning at a high rpm. To prevent this, the automatic rev-matching function of many high-performance cars automatically blips the throttle when downshifting, matching the speed of the engine to the optimal gear speed and thus stabilizing the car while braking.

With the Hyundai i30 N’s automatic rev-matching feature that can be turned on with a button on the steering wheel, the performance car provides advanced cornering abilities. Enjoy smooth and fast downshifting before a corner and get maximum speed when exiting that corner.

Active Exhaust

An active exhaust system allows drivers to change the loudness of the car’s exhaust system to bring the performance car experience to a new level. With full sound, you can live out your race car dreams, and for your everyday commute, you can go with a more contained exhaust sound.

The Veloster N comes with a high-flow active sport exhaust with three distinctive settings and a variable actuator to provide a marvellous sound experience while driving, just like a full-throttle race car.

Launch Control

A launch control system ensures maximum traction to facilitate the fastest possible start regardless of weather or road conditions. The system controls engine torque to optimize wheel spin and slip while accelerating for a quick launch.

As this exciting feature helps to increase the performance in a race, many performance cars have integrated this feature, and so do Hyundai N performance cars such as the i30 N, the Veloster N, and the i30 Fastback N. The Hyundai N cars’ launch control system provides a combination of accelerator and electronic optimization to provide maximum power delivery to wheels and gearbox.

Electronic Stability Control

The electronic stability control (ESC) system is an important safety feature that improves a car’s stability. The computerized technology detects when the driver loses control over the car and when the car loses traction and improves the car’s stability by applying individual brakes to keep the car on track. Depending on the ESC system, the car’s engine power might decrease until the car obtains stability and control.

Due to the harsh driving conditions on the racetrack, performance cars require ESC systems that provide additional safety but don’t disturb the driver’s racing experience.

This is why the N traction and stability control is an ESC system that Hyundai developed to help the driver whenever necessary, while not disturbing the driver and allowing for maximum speed and driving fun on the track. For a limitless racetrack experience, the N traction and stability control can be completely turned off.

Performance Car Terminology

While there are many more exciting high-performance car features, the ECS, eLSD, rev-matching, active exhaust, launch control, and the ESC systems are powerful features that deliver an excellent and action-packed racing experience.

Even if these terms might sound unfamiliar and intimidating at first, once you understand the basic function and purpose of these car features, you’ll be able to use them freely when talking about your favorite performance cars.