Be careful around any cryogenic/low temp stuff.
We used liquid gases to cool steel samples for low temperature tests. You need proper safety procedures as if doing high temperature stuff.
Think frostbite but much worse!
Whist we had the liquified gas we did some other testing.
An apple went rock hard and shattered when hit.
Rubber did similar.
Wood the same.
I’d be very wary about cleaning a car. Parts taken off and rubber, wiring etc removed as when washing a cylinder head/stripped carb.
