This data from 2018[1] indicates that the most frequently driven car models are driven 25% more than average, and the least are driven 75% less than average. That is individual models, which you would expect to average out over multiple models. The large car companies like Ford and GM with a broad range of model types and customer base are in the middle of the pack in the lending tree report, as expected, while smaller companies tend to fall at the extremes. This could be explained by either differences in the types of customers they attract, or differences in driving distance.

For example RAM only sells trucks, and their drivers may not be any worse than other truck drivers, but they don't sell other vehicles to bring the average down.

Looking at the brands with the lowest crashes, they are one that are stereotypically owned by older drivers who drive significantly less miles.

All in all, enough suspicious correlations for me to take the data with a grain of salt.

[1]https://www.freep.com/story/money/cars/mark-phelan/2018/07/2...

No. High-mileage drivers have a reason to prefer electric vehicles, since they're cheaper to operate per-mile than gasoline vehicles.