What would it take to convert a 2006 Ford Taurus to natural gas?

Question

Is any one doing this and what does it entail? How much trouble and how much money?

Answer 1

$3,500.00 to $4,500.00

Answer 2

The cost, while very high isn't the whole problem. The biggest problem is finding a place which dispenses Liquified Natural Gas. About the only stations I have seen anywhere belonged to a few municipal governments, to provide their fleet vehicles, and they're not open to the public.