Wendy's right, of course.
Most women drivers around where I live will confirm that the main purpose of the rear view mirror is mascara application.
I'm seriously considering buying an Austin Seven Ruby Saloon, by the way. They were made between 1934 and 1939. You can get one in mint condition for about £6,500. Top speed's about 45mph, but they make a real statement:
http://www.austinsevenownersclub.com/