What's the meaning of this sentence?

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hello, I have a question on the bold part below:

If we all know that driving drunk is dangerous, what about driving sleepy? You know that groggy time late at night or after a hard day on the job. A different order of danger? Not necessarily. Tonight, Dateline’s Dennis Murphy explores the common perils.
Two drivers, knocking down cones, slamming into obstacles. Neither is in any shape to be behind the wheel. Both are driving like drunks, but only one is.

  1. I don’t know the meaning of “Neither is in any shape to be behind the wheel.” As I guess, (or As I am sure) I thought it means “We can’t identify/recognize the drivers (their ‘shape’ is broken) because the damage is too big.” I translated “shape” a bit literally. What’s the meaning of “in any shape” here? What do you think?

  2. And…to be. Is “to be behind the wheel” modifying ‘shape’ here? I’m curious. Please let me know!!

Thanks in advance,
sweetpumpkin

2

Neither is in any shape to be behind the wheel = Neither (of the two drivers) is in a fit enough state to be driving a car.

3

Thank you for your attention, Beeesneees.

I’d like to ask again its meaning-- neither is in a fit enough state to be driving a car – you mean, because of drinking/being sleepy or because they knocked down cones and slammed into obstacles?