Overdrive 15 March 2015 - News including: Visible road marking research; Drug drivers overtake drink-drivers; Chrysler and Dodge staying down-under; Pirelli advanced recycling and F1 tech coming to your tyres; Obama tells Federal agencies to cut emissions; and tying your load.

We road test the all-new Mazda 2.

We talk to a world expert on the latest in bicycle planning and what it means to Australia .

And Quirky News including: Richard Branson taking on Tesla?; a hungry Lioness that knows how to open a car door; and is cycling as Green as we think?