Tradingpost has 0 Opel Insignia cars for sale above $100,000 in Marrangaroo, NSW. As Australia's favourite way to buy and sell for over 50 years, Tradingpost is the trusted way to sell your current car, and find your next car at a great price! When looking to buy or sell a Opel Insignia always be sure to check out the wide range listed on Tradingpost!