Re: They are in big trouble
"I think the first estimates were around $18bn to rectify the problem, without taking into account fines."
That wasn't to rectify the problem. That was the potential bill if the EPA posted the maximum $36,000 fine per car across all half-a-million cars.
Actually rectifying the problem is on top of that, but the EPA may choose not to levy the full fine available to them (or agree a repayment plan over the next decade or so!).