LOL there is literally a "$0 total" deal ($0.24 rounded down). At least it's REALLY obvious it's a scam:

  Due today: $0.00
  Due at car rental counter: $0.24
  Car rental: $0.20 Scg - lpf $0.01Scg - iva $0.03"

I'm guessing there is some crazy location fee, mandatory insurance at an inflated price and/or "oops the car you booked isn't available"?