What's The Difference Between Oversteer And Understeer?

Oversteer and understeer are two of the most common types of car handling problems that drivers may experience. They are often confused with each other because they both present themselves in different ways, but understanding what they really mean can help you diagnose your vehicle's problem more quickly.
Oversteer is when the rear tires lose traction and spin out. This usually happens in a turn when the front wheels have enough grip to cut into the corner, but due to weight or something else, there is not enough grip on the back end