Tradingpost has 0 BMW M4 cars for sale above $100,000 in Nowra-Bomaderry, 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 BMW M4 always be sure to check out the wide range listed on Tradingpost!