Understeer occurs when the front wheels start to plow straight even if you turn the steering, and oversteer occurs when the back of the car is being fishtailed.

Is oversteer or understeer better?

Most Prefer Oversteer

The majority of drivers prefer a little bit of oversteer to have that responsive turn in through corners. However, some drivers will actually be faster with understeer because they have a stable rear end on the car, and they know they can turn in without spinning out.

What causes oversteer vs understeer?

Understeering occurs in vehicles with front-wheel drive and usually happens when the driver is going too fast for conditions, which causes the front tires to lose their grip on the road. Oversteering is something that happens in vehicles that have rear-wheel drive, and it also is related to speed.