poop
burning rubber
That smell is probably your clutch burning out.
The clutch is slipping and needs replaced.
Because of the rubber. The rubber can smell a little weird.
Bad electrical fixtures.
Mothballs could create some of the odor.
Acetone.
most likely the rubber or plastic wiring insulation.
when changing the oil sometimes oil can be spilled on the engine block. as your engine heats up it causes this smell. it is completely normal
a burnt rubber ball in the cardorater
because it's a strong smell