Comprehensive and collision auto insurance coverage, on the other hand, are tied to the insured vehicle (they follow the car). These coverages pay for damage that befalls the insured vehicle as a result of an accident or vandalism. One could say that if you loan your vehicle, you loan your insurance. With comprehensive insurance which covers almost everything, it is the car rather than the driver that is covered. This, however, requires many stipulations to be put in place, such as who is allowed to drive the car. If someone other than the insured is driving a vehicle covered by comprehensive coverage and is not listed as a covered driver – even if the other person has permission – the other person might not be covered in an accident. Family members (such as children or a spouse) are generally already included in the policy definition of “insured.” However, rarely will insurance cover a driver operating a vehicle without the owner’s permission.
Cheap, sub-standard auto carriers write insurance for insureds with bad driving records. They are able to do this by setting their own limited conditions under which they will provide coverage. These sub-standard carriers do not cover claims that would be covered under a more standard policy. These policies can contain “named-driver exclusions” which limit coverage to persons specifically named in the policy. “Step-down” policies often lower liability coverage to a state’s minimum limits for permissive users, even if the insured pays for higher limits. Deductibles can be higher and/or a policy won’t extend coverage to a rental vehicle. Therefore, policy terms vary and directly affect whether a particular coverage follows the car or the driver.
Retrospectively rated insurance is a method of establishing a premium on large commercial accounts. The final premium is based on the insured's actual loss experience during the policy term, sometimes subject to a minimum and maximum premium, with the final premium determined by a formula. Under this plan, the current year's premium is based partially (or wholly) on the current year's losses, although the premium adjustments may take months or years beyond the current year's expiration date. The rating formula is guaranteed in the insurance contract. Formula: retrospective premium = converted loss + basic premium × tax multiplier. Numerous variations of this formula have been developed and are in use.

In the United States, the tax on interest income on life insurance policies and annuities is generally deferred. However, in some cases the benefit derived from tax deferral may be offset by a low return. This depends upon the insuring company, the type of policy and other variables (mortality, market return, etc.). Moreover, other income tax saving vehicles (e.g., IRAs, 401(k) plans, Roth IRAs) may be better alternatives for value accumulation.
In July 2007, The Federal Trade Commission (FTC) released a report presenting the results of a study concerning credit-based insurance scores in automobile insurance. The study found that these scores are effective predictors of risk. It also showed that African-Americans and Hispanics are substantially overrepresented in the lowest credit scores, and substantially underrepresented in the highest, while Caucasians and Asians are more evenly spread across the scores. The credit scores were also found to predict risk within each of the ethnic groups, leading the FTC to conclude that the scoring models are not solely proxies for redlining. The FTC indicated little data was available to evaluate benefit of insurance scores to consumers.[58] The report was disputed by representatives of the Consumer Federation of America, the National Fair Housing Alliance, the National Consumer Law Center, and the Center for Economic Justice, for relying on data provided by the insurance industry.[59]
Comprehensive car insurance covers damages from an "act of God," or events that are not caused by a car driving into something else. An "act of God" can include things like damage from a heavy tree branch falling on your car. Since you have no control over when or why a tree branch would fall on your car, this kind of accident would be covered under your comprehensive policy.