What am I?

The bigger I am, the less I will hold. No one else would be so bold.

I get comfy in the car, as we travel real far.

I used to get used a whole lot. Now, nobody gives a squat.

It's clear when I fail, you'll hear folks wail.

I was popular in the eighties. I sure miss my Mercedes.

And I will say, picture responses are preferred! And folks, this is my first question ever in this forum. thx!