Dr. J.H. Purves had a plan that would make the steering of the Dynasphere more like the steering on a car. The way to do this was to have the steering wheel shift the cabin of the Dynasphere to one side or the other. This in a way automated the “leaning” motion that was needed to turn the wheel prior to the new model. This model also got plenty of attention and was even featured on video as eager spectators watched the new and improved Dynasphere in action.
But the Dyansphere still had problems, namely that even with the improvements it was still nearly impossible to steer. Turning the wheel was no easy task, taking a decent amount of force to move the weighty cabin from one side to the other. This meant that turning was not as smooth or as fast as it would be in a car. It took several hard turns to activate the movement and that was not at all practical at higher speeds, which defeated the purpose of having a high-speed car if it was impossible to steer at high speeds.
That was a problem that might have been solved with a smoother operation and better gears. Even with improvements, the Dynasphere was not likely to be easier to steer than a car. But there was another problem with the Dynasphere that was an even bigger problem than the difficulty with the steering and that was braking. The Dynasphere had brakes and with enough pressure, it would stop when you wanted it to, the problem was that sometimes the cabin of the vehicle would not. This meant that sometimes upon trying to stop, the person riding the Dynasphere would become something of a human hamster spinning around inside the wheel until the momentum was spent.
So, while the idea was interesting and people were excited about it, it was hard to steer and hard to break and sometimes you went for a spin inside the wheel. Apparently, Dr. J.H. Purves and his son never figured out a solution to these problems because the Dynasphere disappeared into history not long after 1932.