I have had Progressive for years and have never had any trouble. My car got plowed into by a deer, and Progressive was reasonable to deal with. Their rates are also about the best I can find. We bundle in our home insurance (through some licensed third party) and save even more! Our rates just actually went down this past 6-month period which was a pleasant surprise.
Working with insurance adjusters on a daily basis, I couldn't image carrying insurance through any other company. I find Erie to be the most likely to settle claims, which makes me feel extremely well-covered when I'm on the road. I know that if something happens, and the other person doesn't have insurance, my company will take care of me without pushing back or thinking of dropping me. I love ERIE!.
American Modern is backed by GEICO and provides classic and collector car insurance for a wide array of vehicles. American Modern provides flexible mileage plans, including an unlimited one which is perfect for collectors who like to drive their vehicle occasionally. With American Modern, you also get the largest standard spare parts coverage, as well as 'inflation guard' which ensures your policy scales as your car increases in value.