I guess it comes down to God-given skills supported by practice. It is the only way I can explain why some appear to be able to drive in heels and some can't. I appear to one of the lucky ones as I have never had a problem and I have been driving in heels for almost 20 years. For most of that time, I have had manual transmissions. In the last 4 months, I have probably driven several thousand miles in the Northeast US - mostly between New York and Boston. It has included city driving and highway driving including backed up highway driving. However, I won't mow my lawn in heels. I have enough trouble with the "clutch" and the brake on that thing already
One skill that I do practice at times and which might be useful for those that have manual transmissions is shifting without using the clutch. If you have a syncro-mesh in the transmission, then you can slip in and out of gear by just adjusting the speed of the engine to match the speed of the car. A great many people don't believe that one can do this but, in part, this is why I am on my original clutch with over 200,000 miles on it. (Now if that discussion doesn't show that I truly have a male side, I don't know what will!)
So, heel lovers just keep practicing and you will be able to drive yourselves to those hot night clubs in those hhhiiiggghhh heels!
Leann