 Levitt had to be taught to drive and Leslie Callingham, a young salesman employed by Napiers, was instructed to undertake the task during his day off work.Fortunately Levitt was a fast learner as Callingham disliked her intensely and was affronted at having to teach a woman to drive.Cars were entered in official trials to accumulate performance information for possible buyers; only the company driver and an official were permitted in the vehicle.