Thanks. Lots of opportunities to borrow ideas and products from other sectors, although of course small packed volume is more important than mass in your case. Protecting yourself Biker gear as above, but probably waterproof "outers" rather than "leathers".Walking gear: I currently use a very thin Gore-Tex uninsulated outer jacket and non-breathable uninsulated outer trousers.Cycling jacket: flexible, high-visibility (so you don't need to carry another one in France), often have good ventilation, and long-backed.Space blankets are only effective (on Earth) if you don't move and disturb the layer of trapped air or actively heat it. I'd suggest walking gear instead, and probably multilayered. There's lots of 12V heated clothing available but you probably don't need to get into that, and you'd have to keep your engine (and fuel pump!) running.Protecting the Seven Things like hoods: as above, but I think you're making this a lot harder by using half-doors.Things like tarps: in the backpacking world these can pack very small, even if you don't need to get into the ultralight world. But you'll need something like a pole or a rope and somewhere to tie the other end, as with that "survival bag". (Which I wouldn't touch with any sort of pole!) It's quite likely that there'd be a sign with a pole or something where you pull off, but you won't know in advance! This would also allow cooking. :-)"Maybe just a car cover with see through bits, but one that's waterproof... ". Yes, but you'll also need to get in and out...Jonathan