Ugh that's a lie, late 80-90s Benz will need a complete rewiring. They used a biodegradable coating for all wires, the coating degraded faster in cold and hot markets too. Catastrophic failure in 20-30 years is normal.

Fisher pens are pretty great. They are the "space" pens that can write anywhere. I used them in the Army, I've lost some, but one survives. Even after mud, dirt, tossed around, uses in rain, sand environments, it survives.