According to an emailed statement from an Insurance Bureau of Canada (IBC) spokesperson, “When it comes to the insurance cost associated with a vehicle, a convertible doesn’t necessarily cost more to insure when compared to a regular vehicle.”   “Liability premiums are typically the same for both a convertible and non-convertible. However, premiums for optional damage coverage (e.g., collision coverage) could differ.”  The amount you can expect to pay for car insurance for a convertible will depend mainly on the level of coverage you require. So, while liability coverage for convertibles is comparable to standard vehicles, additional coverage for repair and replacement costs can be more expensive, which can bump up your premium.