[Margaret Pilkington]

Well Eric I was once told that it was because a man once showed a lady something and told her it was nine inches...this gave her a distorted sense of size and proportion.

I have to say...personally....and I drove for twenty five years or more....I never ever had any difficulty in parking my car.

It is a huge generalisation to say that women cannot park a car...and worse still to infer that it is because they are WOMEN......not that they have not had the appropriate driver education...because that is what it boils down to.
Practice when you are learning is the key. My driving instructor was like a dog with a bone......I had to do it until I was proficient at it.
Sorry to get on the soapbox Eric, but it was a slur agains those of us who can park.