Tesla Model 3: The Model 3 topped the list of EVs most likely to end up in the repair shop, with 29.61% of insured owners filing repair claims. Least Reliable Brand: Tesla was found to be the least reliable EV brand overall, with four of its models (Model 3, Model Y, Model S, and Model X) ranking among those with the highest repair claim rates. Top EV Models Prone to Repair ClaimsThe study ranked vehicles based on the percentage of insured cars that made claims for repairs. Most owners report issues with CHAdeMO fast charging failure. Most owners report issues with CHAdeMO fast charging failure.