I can't remember the last time I had a problem with a vehicle and got away with only a $400 bill.
That's the other side of this study, or a similar one. The authors estimated the typical major car repair, or unexpected trip at $2,000, and 60% couldn't come up with 2k in 30 days, even through borrowing and the selling of assets. So, they don't have $400 in cash, and can't find $1700 worth of stuff to sell to make up the difference.
I imagine half the folks here could come up with 2k in just primers and .22 ammo.