Car vibrating and shaking with the smell coming from the muffler
The awful smell your referring to is probably the catalytic converter being damaged (https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-catalytic-converter). When there is a severe misfire, like what you're describing, the catalytic converter will deteriorate, resulting in a sulfur smell. Of course, the misfire will also...
