Cleaning the interior when magic eraser and brushes dont cut it???

[winmutt]

What to use. My car is horribly horribly dirty. I have driven it this way for some time and am tired of it. I started cleaning the other day using orange citrus stuff and a fingernail brush. It did an ok job but at this rate it will be a few more decades before its clean. I have used magic erasers but would have to by the manufacturing plant.

So the question is, what should I use for the most dire of dirt?