You may be interested in this: http://web.getaround.com/eligibility
Remember, your choice to speed is just that- a choice. Any negative repercussions you have brought upon yourself, happened as a result of your choices. I'm not judging you- it's not like I've never driven over the speed limit- but do remember it's a choice.
I'd also like to be able to show them how many miles I drive a year (ALOT!) - mostly highway out of state, so I have a far higher chance than the average person.
A simple 18 months figure (ZipCar's) doesn't get the guy with one ticket 2 years ago who barely drives with no experience. Also, I'd like to be able to show something like my credit score as it's an indication of my level of responsibility. Of course - it's a pipe dream...