Heavy, fast and quiet: do EVs raise injury and liability claims?

So far the claims data do not show electric vehicles producing more injury or liability claims than comparable gasoline cars. In the Highway Loss Data Institute's most recent matched-pair study of electric vehicles and their gas twins, published in December 2020, the electric versions had fewer claims for injuries and damage to other people, even after adjusting for how little they were driven. The worries about weight, quick acceleration and quiet operation are real in the research literature, but each is either unproven for EVs in insurance data or too thinly covered to settle the question. The data also stop short of today's heaviest and fastest electric models, so the gap deserves a careful read.

This article separates two bills that get mixed up when people say EVs are "expensive to insure": what an EV costs to fix when its owner crashes it, and what it costs the people it hits.

Two bills: your EV, and everyone else

When you crash a car you are at fault in, different coverages answer different questions, and the Highway Loss Data Institute (HLDI) defines them in a way that makes the split clear.

Repair costs for batteries, sensors and aluminum structures show up mainly in the first line. The second and third lines depend on how often an EV driver causes crashes and how hard those crashes hit. That is the question behind "heavy, fast and quiet." Your EV's price tag does not enter the liability bill directly. What enters is the damage it does to the car in front of it and the people inside.

What the HLDI matched-pair study measured

The most direct evidence is HLDI's December 2020 bulletin on the insurance losses of electric vehicles and their conventional counterparts. The design is straightforward:

• Pairs. A "conventional counterpart" shares the same platform and nameplate with its electric version and is made by the same manufacturer. Nine pairs qualified, with model years from 2012 to 2020: Toyota RAV4, Ford Focus, Smart ForTwo (two body styles), Fiat 500, Chevrolet Spark, Volkswagen Golf, Kia Soul and Hyundai Kona.
• Controls. The regression adjusts for calendar year, state, vehicle density, rated driver age, gender and marital status, deductible range and risk class. Importantly, it also adjusts for miles per day, using odometer data from CARFAX, because the EVs in the study were driven 39% fewer miles per day than their gas counterparts.
• Exposure. About 5.1 million insured vehicle years of conventional models against roughly 178,000 for the electric ones, so EVs made up about 3% of the exposure.

The pairs are mostly compact and subcompact cars, with an exposure-weighted curb weight 9% above their gas twins and a base price 62% higher, according to the bulletin. Here is what HLDI found when it controlled for mileage:

All of the frequency results were statistically significant, according to HLDI. Without the mileage control the collision and property damage reductions were slightly larger (23% and 21%). HLDI's own conclusion is that the lower losses "are due only partly to fewer exposure miles."

Three caveats come from the bulletin itself:

1. Few injury claims. HLDI wrote that because there were so few EV claims under the injury coverages, it analyzed only claim frequency for all claims, not severity. A handful of serious injury claims would not show up as a stable average.
2. Tesla is not in the comparison. Tesla has no gas counterpart, so it could not be paired. HLDI noted that its previous analyses had indicated Tesla losses were higher than those of other large luxury vehicles with gasoline engines, and that the difference grew after adjusting for mileage. That earlier work is not repeated in the 2020 bulletin, so no Tesla numbers are available here.
3. Severity has been moving. HLDI said the higher EV claim severity seen in its 2015 to 2017 studies had attenuated, with the collision result no longer statistically significant. In 2017, collision severity was a significant 7% higher and PDL severity 8% higher; in 2020 they were 1% and 3%.

Because the pairs are modest cars, the study says little about a three-ton electric truck or a 600-horsepower sedan. Treat it as the best available matched evidence for typical EVs of that era, not the last word on the heaviest models.

Weight: what IIHS research does and does not say

Physics suggests that a heavier vehicle in a crash puts more energy into whatever it hits. The Insurance Institute for Highway Safety (IIHS) has studied that for cars, SUVs and pickups generally, not EVs specifically. As Claims Journal reported in February 2025, IIHS examined two-vehicle crashes among cars, SUVs and pickups that were one to four years old, from 2011 to 2016 and 2017 to 2022, and found:

• Adding 500 pounds to a vehicle that is lighter than average poses little to no increased risk to people in other vehicles. The same increase on a heavier-than-average vehicle heightens the danger to those other people.
• Using a sample average vehicle weight of 4,000 pounds, each extra 500 pounds in a car below that average cut the driver death rate by 17 deaths per million registered vehicle years while adding one to the death rate of the crash partner's occupants. For pickups above the average, each additional 500 pounds cut the driver death rate by one and raised the crash-partner rate by seven.
• Compatibility has improved. Car occupants had been 90% more likely to die in crashes with SUVs weighing more than 5,000 pounds than in crashes with other cars, and that figure fell to 20% for 2017 to 2022, after front-end redesigns and side airbags.

The study did not isolate electric vehicles, so it cannot say whether battery weight changes the picture. It does show that weight matters most when a vehicle is already on the heavy side, which is where some large electric trucks and SUVs sit. That is a reason to take the question seriously, and a reason not to read the matched-pair result as proof about heavy EVs.

Acceleration: a hypothesis, not a finding

Electric motors deliver torque instantly, and some models accelerate far quicker than gasoline versions. Would that raise crash frequency, or the severity of the damage an EV does to others?

The HLDI pairs do not suggest so: lower collision and property damage liability frequency, and lower injury frequency, after mileage controls. Because the pairs are mostly small, modest-power cars, they are a weak test of high-performance models. None of the insurance-loss research reviewed for this article isolates instant torque as a cause of claims. A measure of how hard drivers accelerate is not the same as a measure of how many claims they file, and until a loss study separates the two, torque stays a hypothesis.

What does hold true is that how a car is driven matters at least as much as how it is built. HLDI's mileage finding is an example: the lower EV claim counts are partly explained by the EVs simply being driven fewer miles per day. If EV owners increase their driving as charging networks grow, the exposure part of that gap will narrow.

Quiet operation and pedestrians

The quietest part of the debate is about people on foot. Electric motors make little noise at low speeds. The National Highway Traffic Safety Administration (NHTSA) examined that when it issued Federal Motor Vehicle Safety Standard 141. In the December 2016 final rule, NHTSA reported that hybrid vehicles with a gross weight rating of 10,000 pounds or less were 1.18 times more likely than gasoline vehicles to be involved in a collision with a pedestrian and 1.51 times more likely to be involved with a bicyclist, and that the largest differences were at speed limits of 35 mph and below and during low-speed maneuvers such as turning or pulling in. It added that the data came from 16 states and could not be used to estimate the national problem directly.

The rule requires hybrid and electric vehicles to produce minimum sound at speeds up to 30 km/h (18.6 mph) and in reverse. Initial compliance was required in a phase-in beginning September 1, 2018, and full compliance on September 1, 2019. NHTSA also noted that most pedestrian deaths occur at higher speeds: 67% of pedestrian fatalities involving hybrids or EVs with known speed limits happened where the limit was above 35 mph, where tire and wind noise mask the difference. NHTSA later adjusted one test procedure in a rule effective August 12, 2022, and did not adopt a proposal for driver-selectable alert sounds.

For insurance, injuries to people on foot are paid under the at-fault driver's bodily injury liability. HLDI's matched-pair data show lower bodily injury claim frequency for EVs, which suggests that any pedestrian effect is small relative to the whole, although with few claims it cannot rule out a specific effect. NAIC's EV page lists pedestrian safety considerations tied to quieter operation as a possible underwriting factor, without giving numbers.

There is a separate technology angle. Automatic emergency braking with pedestrian detection cut pedestrian crashes by 27% in an IIHS study cited on its driver assistance page; see do emergency braking and blind-spot alerts cut insurance claims? for how such features show up in claims.

How insurers weigh these results against repair costs

Insurers price each coverage on its own data. That is why an EV can look expensive to insure and low-risk at the same time:

• Physical damage (collision and comprehensive) depends on vehicle value and repair cost. The NAIC's EV insurance page says EVs may cost more to insure because of higher vehicle values, specialized repair needs, battery costs, parts availability and fewer qualified repair facilities. It cites HLDI data showing the gap between average total-loss payments for EVs and conventional vehicles narrowed from nearly $14,000 in 2013 to $1,810 as of 2019. The blogs why electric cars get totaled after crashes a gas car would survive and Certified EV collision repair networks: what the certification means cover that side.
• Liability and injury coverages depend on how often the driver causes crashes and how much those crashes cost other people. Here the matched-pair evidence, and the nature of the lower mileage, favors EVs, but the evidence is incomplete and old.
• Underwriting factors such as the driver's record, the ZIP code and the limits chosen still dominate. The vehicle is one input among many; see how car insurance rates are calculated.

For a longer look at the cost side, see the guide why electric vehicles cost more to insure and the worked example in Insurance in EV vs gas total cost of ownership: a worked example. The way to read an HLDI bulletin yourself is in How to read a Highway Loss Data Institute loss bulletin.

What this means for a household choosing liability limits

Liability limits protect your savings and future income from a judgment. They respond to the other side's losses, so they should be sized to what you could cause and what you could lose. Whether your car is electric changes that calculation less than you might expect, for three reasons.

1. The other side's bills do not depend on your powertrain. A hospital stay costs the same either way.
2. The data do not show EVs causing more claims, and heavier vehicles in general can injure others more severely in a crash. If your household drives a heavy EV truck or SUV, the IIHS weight research is a reason to lean toward higher limits, not because of the battery but because of the mass.
3. The cars you hit increasingly cost more to repair. Damage to a late-model SUV or EV is paid from your property damage limit, and that limit is often the first one to run out. See why property damage limits fall short in today's crashes.

A worked example with invented numbers

Say you cause a crash at an intersection, and you carry 25/50/25 limits, meaning $25,000 per person and $50,000 per accident for injuries, and $25,000 for property damage. The car you hit is a late-model electric SUV that needs $38,000 in repairs, and its two occupants have $90,000 in combined medical bills.

With 100/300/100 limits all of it would fall within the policy. These numbers are invented to show how limits are used up and are not an estimate of what a crash costs. The blog on 100/300/100 vs 250/500/100: what the extra limits buy and choosing liability limits for five different households show how to choose, and the liability limits decoder explains how to read the three numbers. Insurers can also tell you about umbrella policies for amounts above the limits.

Questions to ask an agent when you add an EV:

• "Does the quote reflect this exact trim, including its weight class and driver-assistance features?"
• "How are collision and comprehensive priced for this model compared with its gas version?"
• "What would moving my liability limits up one step cost?"
• "Is repair at a certified EV shop covered, and does my policy limit where the car goes?"

Limits and rating rules vary by state. Your state insurance department can explain what applies where you live.

Common questions

Do EVs cause more serious injuries because they are heavy?

The insurance data studied here do not show more injury claims. IIHS research on heavier vehicles in general found that extra weight on an already-heavy vehicle increases the risk to people in other vehicles, but that study was not about EVs, so the data neither prove nor rule out an EV-specific effect.

Are EV drivers worse at avoiding crashes because of fast acceleration?

No study examined here shows that. The matched-pair data show lower collision and liability claim frequency for EVs, partly because of fewer miles driven. Acceleration as a cause remains a hypothesis.

Did the pedestrian alert rule fix the quiet-car problem?

It addressed the part of the problem NHTSA identified: low-speed detection. Fully phased in September 2019, the sound requirement applies up to 18.6 mph and in reverse. Most pedestrian deaths occur at higher speeds where the rule does not apply, so it is one piece of a broader picture.

Should I buy more liability coverage because I bought an EV?

The choice depends on your assets, income and the cars you might hit, not on the powertrain. If your EV is unusually heavy or you often drive where expensive cars are common, higher limits protect more. State minimum limits are low next to the cost of many serious crashes; see how much liability coverage do you need?.

Key takeaways

• HLDI's December 2020 matched-pair study found EVs with fewer collision, property damage and injury claims than gas twins, after controlling for mileage, though injury claims were few and Tesla was not in the comparison.
• Heavy vehicles of any kind raise the danger to people in other vehicles in IIHS research, but that research did not isolate EVs.
• Acceleration and silence are plausible risk factors, but the claims data reviewed here do not show an effect, and the federal sound rule has been fully in force since September 2019.
• EVs cost more to insure mainly through collision and comprehensive, where value and repair cost count; liability is priced separately.
• Choose liability limits from your assets and the cars you might hit rather than from the powertrain.