Do you know "clutchless manual transmission" ? In fact , nowadays , there are many this model for Japanese big truck. It has another name "Semi-automatic transmission","automated manual transmission","flappy-paddle gearbox" etc. According to the Wikipedia , ------------------------------------------------------------------------------------ A semi-automatic transmission (SAT) (also known as a clutchless manual transmission, automated manual transmission, flappy-paddle gearbox, or paddle-shift gearbox) is an automobile transmission that does not change gears automatically, but rather facilitates manual gear changes by dispensing with the need to press a clutch pedal at the same time as changing gears. It uses electronic sensors, pneumatics, processors and actuators to execute gear ...