Whether driving on wet roads or taking a corner too fast, understanding how a vehicle drives at its limits can be the difference between maintaining control and losing it entirely. Consequently, two important handling dynamics every driver should understand are oversteer and understeer.
What is understeer?
Understeer occurs when the front tyres lose grip before the rear tyres. The CEO of MasterDrive, Eugene Herbert explains: “This causes a vehicle to take a turn wider than intended through a corner. Instead of turning in the direction you are steering, the vehicle drifts outside the bend.
“Drivers of front-wheel-drive cars experience it more commonly. If you have not experienced it before, it feels like the steering is disconnected or unresponsive. Ultimately, the driver is turning the wheel, but the car simply is not responding to inputs.”
Now that one understands what it is, how does a driver react when experiencing understeer? “To correct understeer, ease off the accelerator smoothly, avoiding sudden braking. This can destabilise the vehicle further and make recovery more difficult.
“Additionally, ease off your steering to give the front tyres a chance to grip the road again. Once traction returns, steer the vehicle smoothly back to where you want to be. The key is patience and remaining calm, any harsh or sudden input makes it more difficult to regain control,” says Herbert.
What is oversteer?
Oversteer is the opposite situation. “The rear tyres lose traction, and the back of the car begins to slide outward, pointing the front of the vehicle away from the direction intended.
“In extreme cases, this can result in a spin during correction. Oversteer is more common in rear-wheel-drive vehicles. It is triggered by excessive throttle, harsh braking mid-corner, or entering a bend too quickly.”
Fast but calm reaction is important in correcting an oversteer. “Steer into the slide. Thus, if the rear slides out to the right, steer to the right to counter it and vice versa. This technique is called counter-steering.
“Simultaneously, release the accelerator slowly as a sudden decrease in power can cause a pendulum effect and snap the car in the opposite direction. Once the car straightens, smoothly recentre the steering wheel,” says Herbert.
Extra tips
- Reduce speed before a bend, not during it. Braking mid-corner increases the risk of both understeer and oversteer.
- In a slide, drivers instinctively look at what they fear hitting. Focus on your intended path instead and your steering will follow.
- Front-wheel-drive tends toward understeer; rear-wheel-drive toward oversteer. All-wheel drive is more stable but not immune to either.
- Worn, underinflated, or mismatched tyres reduce grip and make both conditions more likely.
- Nothing replaces real experience. Driver training builds the muscle memory needed to react correctly under pressure.
Of course, drivers should never attempt to practise or perfect these techniques on a public road. “For this reason, MasterDrive runs specialised skid control courses where these methods are taught and refined in a controlled environment, allowing drivers to experience vehicle dynamics safely and develop the correct responses under professional supervision,” says Herbert.
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