Abstract: A manually operable motor vehicle throttle control device which is used to provide a speed control for the vehicle and which includes a manual override arm for releasing the throttle control to allow the throttle to return to the idle position. The device includes a threaded shaft connected to the accelerator pedal linkage (coupled to the carburetor) which includes a mateable, threaded shaft locking arm that is spring loaded which allows for both large and minute throttle adjustment setting (by pulling on the shaft or by rotating the shaft). The device is noncomplex in construction and may be readily installed in vehicles already manufactured. Brake override of the control is included.