Probably required so you don’t open the door into a bicycle, truck, pedestrian etc. as you get out of the car?

I grew up around these things and never realized how skinny the tires are.

I have a C5 for sale in Detroit metro. Let me know if you’d like to have a look! It’s held up great on these Michigan highways :)

I have seen a couch on I696 in Michigan. And a mattress.