An internal combustion engine developed only ancillary torque at a particular narrow speed limit; that of modern overhead valve engines is around 2500 rpm with relative low torque at higher speeds. Overhead camshaft engines in general reach a higher torque value, but this value is typical for a narrower camshaft profile. While the transaxle is used in changing the relation of the engine speed to the wheel speed, the clutch in this Trotro model provides smooth engagements from rest due to mechanical slippage. The transaxle is used to shift gear speed ratios of between the engine and transmitting system to the wheels with 4 or 5 gear speed transmissions, where the lower gear allows full power from the engine during slow movement. The clutch drive plate is a thin disc splined in conjunction with the transaxle input shaft which has a brake lining like material that enables it to slip quietly. The clutch cover, secured on the engine flywheel, features for pressure engagement the diaphragm spring and encompasses the pressure plate while the driven disc is pinned between the two when the clutch pedal is released. Within the transaxle is a mainshaft that passes through the case and the distance between the front and rear portions allows them to rotate at different speeds, meanwhile power is shafted through a countershaft in first and second through fourth gears and reverse, with gears intermeshing to transfer power. The countershaft gears are an integral part of it, but some of the mainshaft gears may turn independently, or be locked to the shaft, with shifting mechanisms using internal dog clutch. The free travel on the clutch pedal must also be adjusted in order to minimize wear and slippage; some use hydraulic linkage. FWD can be described as a power distribution system where the transaxle serves the functions of both transmission and drive axle; whereas the coupling mechanisms between halfshafts are by means of open or constant velocity joints to enable movement to wheel.