A semi-automatic car is a type of vehicle that combines elements of both a manual and an automatic gearbox. It is a multiple-speed transmission where part of its operation is automated, typically the actuation of the clutch, but the drivers input is still required to launch the vehicle from a standstill and to manually change gears. Semi-automatics facilitate easier gear shifts by removing the need to depress a clutch pedal or lever at the same time as changing gears. Depending on the mechanical build, design, and age of the vehicle, they can use anything from hydraulic, pneumatic or electric actuators, electrical switches, motors, and processors, or a combination of any such systems, to execute gear shifts on demand when requested by the driver, which is typically initiated when the driver moves the gear stick.
Semi-automatic cars are half-automatic, half-manual vehicles. They give the ease and convenience of an automatic and the control and smoothness of a manual. You can drive them if you only hold a semi-automatic license as you never need to engage Manual mode if you don't want to. A semi-automatic car is a half-automatic, half-manual car. They have what is usually referred to as a "flappy-paddle gearbox" or a "paddle-shift gearbox". You can drive a semi-automatic like a fully automatic (no need for manual gear changes), but you can also take manual control. This involves using the paddles on either side of the steering wheel to change gear.
To drive a semi-automatic car, turn the key in the ignition and hold down the brake pedal as you switch the gearshift to manual transmission. Then, put the car in drive and begin driving as you normally would. As the car picks up speed, move the gearshift towards the plus sign to increase the gear. When you’re slowing down and need to lower the gear, ease off the gas pedal and pull the gearshift towards the minus sign.