This makes sense because Porsches aren't daily drivers for disproportionately large percentage of their owners. This needs to be normalized by miles driven to be meaningful.
I found the source and the stat sorta accounts for that in a different way, because it reports any at-fault accident in the driver's history, regardless of whether or not it was with that particular car. Thus, even if the Porsche isn't a daily driver, the owner's past accidents would still count.
That said, I'm not sure how I feel about this methodology overall. It's based on insurance applications submitted by the drivers themselves, and I'm not sure what they do to check applicants' actual history. Perhaps Porsche drivers are more inclined to lie about their accident histories?
> To apply for car insurance, drivers input personal and vehicle information, including the make and model of the car they drive, their license plate number, and whether or not they have caused an accident in the past. To create the list below, the Insurify data science team compared the number of car owners with a prior at-fault accident against the total number of drivers for each make and model, determining the proportion of drivers with an at-fault accident on record.
