I live in Wisconsin and have an early 2000s Honda that has basically lived outdoors its whole life. We get anything from rain to sleet to freezing rain and ice on a regular basis. The car thankfully has no rust but it is very scratched up and the paint is in poor condition despite my best efforts to keep it in good shape. Parking outside just does that and I have no other option. I last had it detailed a few months ago at a shop that I felt would be good but they did a poor job. I have detailed the vehicle myself in the past, using clay bar and the klasse kit. I need to apply something to the car that will last 5 months or so outside in the harsh winter. I live downtown so I literally do not have a parking garage or an outlet where I could use any power buffer of any kind. I am happy to do what I can by hand. What would you recommend to apply to help the car get through winter?