Shocking new figures have confirmed what many of us already know - the majority of Brisbane motorists do not know how to correctly indicate on roundabouts.

The RACQ audited several roundabouts across Brisbane, including Sunnybank, and also at Nambour on the Sunshine Coast, and found more than 60 per cent failed to pass the test.

Most Brisbane drivers don't know how use a roundabout. Credit:Nelson

About 800 motorists were counted as part of the research.

RACQ spokeswoman Lauren Ritchie said it was worrying how many motorists failed to get the basics correct.