Investors hunt for latest trend in transport technology

While it may seem many carmakers are making headlines for all the wrong reasons lately, everyone still has to get from A to B.There's a lot of money to be made in the transportation business, and increasingly, the focus is on the use of new technologies.This ranges across everything from self-driving cars to new smartphone applications that can help hail a ride or navigate the shortest route.

So what are investment firms targeting? The BBC's Mariko Oi went to find out.