25 year old BMW. Zero rust...forever?

My 1997 BMW Z3 is back from getting the full Dinitrol treatment at Duke Street Garage in Rochdale. So now this incredibly clean, rust-free car is protected for another 25 years, I hope!
Since it's going to be my daily driver for a few months while I finish the body swap and upgrades on my electric Z300S, and it's time to do a few more bits to keep it in good shape and make it a "nice place to be", if you'll forgive the cliche. Plus, remember this car too is getting an EV and body swap down the line, so it's worth putting some time in.
In this episode I touch up the paint using a pen from autocolourz.co.uk, try out my new Vax Spotwash Duo for cleaning the carpets (in the style of M539), and give the seats a good clean.
A successful couple of hours, apart from the point where I took off my jacket (it was hard work) and left the microphone attached to it. Cue musical interlude...