The last day or so, I've been noticing a weird smell in my car - almost like green onions, if green onion smell were about twenty times stronger and included elements of rot.
Finally found the source: last time mom and I went grocery shopping, we were in my car because hers is in the shop, and it seems some celery stayed in the trunk. (It took some green onions along for the ride, too!)
I sprinkled the trunk with baking soda and put some in a saucer (actually, a handy plant-pot tray) to sit overnight; the next morning I woke up early so that I could check on it. Not much of a dent in the stench, unfortunately, so I pulled the 'flooring' out of the trunk entirely to let it sit in the sunlight, and used two different kinds of Febreeze inside the trunk. Once the floor piece had sat for several hours, I shook off all the baking soda and Febreeze'd it, too. It's still sitting out there aerating, and will probably stay there a while longer, though the car smells much better -- I want to be sure that there won't be a return of the Horrible Onion Odor!
A Mid-Summer and a Mid-Wood Bird
the early petal-fall is past