I actually already use Metromile, an insurance company that charges per mile and uses GPS tracking to measure that mileage. I'm very happy with it. I no longer

I actually already use Metromile, an insurance company that charges per mile and uses GPS tracking to measure that mileage. I'm very happy with it. I no longer have to subsidize heavy drivers, and my rates are much lower as a result. I can always check the location of my car (in case of theft or forgetfulness) and there are other smaller benefits like diagnostics being pushed to my phone. As a bonus, they allow you to change your policy at any time, enabling me to opt in and out of comprehensive and collision based on the time of year.