I sold my 97 +4 for a 2006 Roadster to get the galvanized chassis & stainless steel bulkhead.
I want / hope the car will last
Once a year, I have an arrangement with a local garage to use one of their ramps on a Saturday morning. It allows me to get under the car and clean/touch up any areas that need attention. I use a good acrylic, black, stone-guard paint, which is brush on.
Costs me £20 + the paint and worth every penny.