Rubber
A ballast that smells burnt is going bad. The ballast will have to be replaced to fix the problem.
Your Overdrive Button on your shifter is shorting out & melting,Replace it!
You can try wiping the rubber weights with a damp cloth soaked in a vinegar or lemon juice solution to neutralize the smell. Alternatively, you can also try placing the weights outside in a well-ventilated area to air out and dissipate the smell over time. If the smell persists, you may need to replace the rubber weights.
Dog food ;)
You can use either term. 'Burned' and 'burnt' are variations on the same word, just like 'learned' and 'learnt'.So you could say, 'The car smelled of burned rubber', or 'The car smelled of burnt rubber'.
a burnt rubber ball in the cardorater
A burnt leaf.
Power steering fluid smells burnt, sometimes I add fluid, cause its down
the oil is darkit smells burnt
Gold
Marijuana, primarily. It could also be salvia, or several other "organic" drugs.