A third floor pedal, the accelerator, was added, but the steering wheel lever remained in place and was used as a manual accelerator - in other words the predecessor of modern cruise control systems! At that time, however, this was a safety solution rather than a comfort function, because on broken roads and with fairly primitive suspension systems the driver often found it difficult to keep their foot on the accelerator pedal, and this way they could control the car’s performance on the steering wheel.