Taxi in Shanghai, China.

In London alone, 10 women are attacked each month after getting into an unlicensed mini-cab. No wonder many women feel safer taking a taxi driven by a woman.
 
Pink Ladies spotted a business opportunity, and created the UK's first women-only private car hire franchise. The Pink Ladies drive Renault Kangoos that are pink inside and out, making them highly visible. Passengers sign up as members, and fares are either pre-paid, paid by credit card or with a "pink account," which is both convenient for members and safe for drivers.

Imagine calling for a cab and getting this instead.