The latest survey on motor insurance by the Irish Financial Services Regulatory Authority shows that people can save between €200 and €1,800 on their premiums by shopping around.
The survey features six profiles, one of which shows that a 35-year-old driver looking for private and commercial cover would be quoted €2,913 by AXA, but just €1,165 by FBD.
IFSRA says its survey shows that price is not the only issue, and it lists the additional benefits available with some policies.
IFSRA consumer director Mary O'Dea says the survey also outlines how equality legislation relates to motor insurance. This follows recent cases brought by the Equality Authority on behalf of consumers who were refused motor insurance.
Ms O'Dea says insurance companies have the right to refuse cover provided they are not in breach of equality legislation, but they must provide a reason for refusal if asked.
IFSRA has published three previous motor insurance surveys, comparing quotes from insurance companies for people of a range of ages and occupations.