Which type of insurance is unique in that its annual limit of liability cannot be exhausted by a series of partial losses?

Motor third party bodily injury cover is distinctive because it provides coverage on a per-accident basis, rather than accumulating an annual limit of liability that can be exhausted through multiple claims. This means that regardless of how many claims arise from various incidents within the policy year, the insurer's liability for each individual accident remains capped at the specified limit.

This structure ensures that each separate incident is treated independently regarding the limits of coverage, allowing for potentially greater total coverage across multiple claims. This contrasts with other types of insurance, such as property insurance or general liability insurance, where the annual limit can be consumed by a series of claims, leaving no coverage available for subsequent losses within the same policy period.