i see allstate has some kind of plan with # of trips and an app when you tell it you are going places. i know others use obd2 and i assume record mileage? but certainly "events". all i know is i'm taking it in the butt now with my 2 cars at allstate and stellar sickmint79 driving record, i don't even know how both cars can cost so much. i work from home and if i ain't tracking don't drive all that far though, so the mileage based stuff seems enticing. about to start a quote o rama but wondering if anyone uses/likes mileage based stuff.