Several obsevations on the matter of driving in heels.
Most females of my acquaintance keep a pair of flatties in their cars to change into when driving, because either they cannot drive too well in heels or they don't want to scuff the backs of their nice heels. Do gurls here do the same, or do you persevere with the heels?
Strangely enough, my wife has always been able to drive in heels to the point that when she is driving our RV she changes into heels for driving. I too have found that the driving position (no matter how the multi-position seat is set) is such that it is more comfortable driving in heels.
Now this may be an urban myth, but I heard from an acquaintance in Spain that the Guardia Civil there were taking an interest in drivers' footwear and issuing spot fines to people wearing backless shoes or other footwear that they considered caused the driver to not have proper control of the vehicle. So if you are driving in Spain, enclosed flatties are advisable, but we will continue to drive the RV in heels and have a pair of slip-on sneakers at hand to change into if stopped.