The reduction-increase coefficient (CRM) remains the most underutilized pricing lever by experienced drivers. Even before comparing coverage or deductibles, a close reading of this coefficient and its interactions with the risk profile determines the actual difference between two auto insurance quotes.
Bonus-malus coefficient and pricing segmentation: what comparison tools don’t show
A driver with a 50% bonus for over three years benefits from specific protection: their first at-fault accident does not lead to a penalty. This rule, often overlooked, radically changes the opportunity calculation between a comprehensive policy and a third-party policy.
The problem arises when insurers segment their rates based on opaque criteria. Two drivers with the same CRM can receive very different premiums depending on their postal code, vehicle model, or declared mileage. We recommend systematically requesting the weighting grid applied, as it never appears in standardized online quotes.
To compare market offers in a structured way, auto insurance on the Annuaire Voitures site allows you to consult different plans categorized by type of coverage and compare the guarantees associated with each insurer.
Deductible in auto insurance: the true cost of a claim
The deductible is the amount you keep to cover after a claim. Increasing your deductible reduces the annual premium, but this calculation only makes sense if you know the frequency and average cost of claims for your profile.
A driver who travels less than 10,000 km per year in a suburban area statistically has less risk than a high-mileage urban profile. In this case, raising the deductible to a high level can generate net savings over three to five years, provided you set aside the amount in a dedicated account.
According to 2025 data from France Assureurs, the average cost of claims has increased, particularly due to repair prices. In other words, a low deductible no longer offers as much protection as before if the compensation ceiling of the contract has not been reassessed in parallel. We observe that many old contracts have never been updated on this point.
The three points to check in your contract
- The compensation ceiling for property damage: if it has remained the same since subscription, it may be insufficient given the inflation of repair costs.
- The specific deductible for glass breakage, often distinct from the general deductible and sometimes accompanied by a mandatory network of repairers.
- The depreciation clause applied to replacement parts, which can significantly reduce the actual amount of compensation for a vehicle over five years old.
Electric vehicle insurance: specific costs and battery guarantee
Electric vehicles present a distinct risk profile. A study by France Assureurs published in November 2025, covering nearly two million vehicles, indicates that the average compensation for an electric claim exceeds that of a thermal vehicle. The repairs of the battery, onboard electronics, and specific sensors explain this gap.
Before subscribing, check three specific points on a contract for an electric vehicle:
- The battery guarantee: some contracts exclude the rented battery or impose a replacement ceiling much lower than its actual value.
- The coverage for towing to an approved center with a containment area suitable for lithium-ion batteries.
- The coverage conditions for home charging stations, sometimes linked to home insurance and not to the auto contract.
For an informed driver, switching to electric requires a review of the entire coverage. A simple adjustment of the policy is not enough, as the cost items are not the same as for a thermal vehicle.
Cancellation by the insurer: new obligations since May 2026
Since May 28, 2026, a unilateral cancellation decided by the insurer must be justified, in accordance with the law simplifying economic life. This change concretely modifies the contractual relationship: an insurer can no longer cancel without providing a specific and verifiable reason.
In practice, the most common reasons remain repeated claims, false declarations, or non-payment. The novelty lies in the obligation of transparency. If you receive a cancellation letter, we recommend checking that the reason given corresponds to a case provided for by the insurance code, and then contesting by registered letter if the basis is insufficient.
This strengthened framework particularly benefits drivers canceled after a single significant claim. A well-documented file (friendly report, photos, contradictory quotes) now serves as a lever to contest an abusive cancellation or negotiate a contract resumption with a competing insurer.
The auto insurance market is evolving rapidly, with rising repair costs, the emergence of risks related to electric vehicles, and the strengthening of insured rights. Reviewing your contract every year and adjusting your deductibles and ceilings remains the most cost-effective action, well before changing insurers.
