Now THIS is actually useful! Why is this not the video the article is about? I can't say that I have ever heard of anyone who carries an old spark plug around with them..

It'd be pretty neat to have one of these in my '92 Festiva. More power, an extra gear, and even less weight.

This is all I can see

I honestly did not know Mazda was that old. Learn something new every day.

It's a land of confusion.

And this is a stock tail light from an early 4th gen base model Firebird. I guess they like their F-body's?

This is a horrendous aftermarket LED taillight for a 4th gen Camaro.