How a pair of disobedient missionaries invented Australia's most iconic road trip

<p>Tens of thousands of 'van lifers' and 'grey nomads' drive around Australia each year. But the iconic road trip has a surprising origin story involving a pair of missionaries, a retired butcher and a gun-slinging mother-daughter duo.</p><p>David Riley is a pastor and father who was on a lap around Australia with his wife and three children when he heard about the surprising origin story of this great road trip.</p><p>In 1925, two young men set off from Perth to Darwin in a tiny French car nicknamed 'Bubsie'.</p><p>They were running an errand for their Church – instructed to set up a Seventh-Day Adventist Missionary outpost in the Northern Territory, then to turn around and come back home.</p><p>Nevill Westwood and Greg Davies battled flat tires, evil cows, losing their way, leaky fuel tanks, dangerous river crossings and a falling out along the way.</p><p>With the help of First Nations people and station owners they met along the way, they made it to Darwin.</p><p>But when they got ...