Ivan and Beth's marriage has been described as a 'threeway marriage' by the TV program, Seven Sharp, in a lovely story about Ivan, Beth and the Beetle.
Journalist Erin Conroy climbs into the back of the Beetle for a last ride and asks Ivan and Beth a few questions.
What's the secret to a 57-year love affair?
Ivan: "Get a car and go for a long drive!"
Beth: "There's no point having an argument when you're driving through the desert and there's only two of you in a car."
When they visited a VW dealer, Beth described the only problems they'd had with the Beetle on their overland trip. "We ran out of petrol, two flat tyres and a donkey. Apart from that, perfect."
Watch the story online here.
Picture: Beth, the Beetle and Ivan in 1961 at the beginning of an epic love affair.