Yea! I finally found comments with someone talking about the railroad side of the equation. It was good reading about the SUV opinions but not what was asked / suggested.
Detroit building RR equipment? Not likely to happen (EMD* was the exception). Bad management doesn't build railway equipment well. Since the customer is the railroads who are (snigger) more intelligent and pickier buyers than us citizens who will take crap there would be no buyer for GM/Chrysler/Ford railway equipment NOT done by EMD or GE. Yea, I'm driving a falling apart '86 Chrysler Clunker. ;-)
*GM BTW used to own EMD (Electro Motive Division), a loco builder. I had missed out on it or forgot but I just looked it up and found out that the dumb*** GM sold of that division in 2005!
But that doesn't mean Detroit can get into railway equipment manufacturing. The assembly of locomotives and railcars is radically different and would require an insane amount of money to rebuild the buildings or build new ones to do railway equipment that most likely wouldn't sell well due to the anti-rail climate in the U.S. A Chrysler equivalent of an AC4400 engine? Who'd buy it? ;-)
And starting from scratch building complex and radically different equipment from the automobile (rolling stock or loco) would be nightmarishly impossible as well and can fail easily. Just look at Colorado Railcar.
Right now the railroads are parking a massive amount of locomotives not because they are being replaced but more likely because of slowing need. And there is a horrendous amount of anti-rail opinion out there. As an example right now there is a lot of anger about talk of opening back up to normal use ("hundreds of trains a day", yea right was more like a dozen at most and a long way down the road after fixing up the track) of a rail line near where I live! The line was never abandoned but everyone was stupid enough to think it was or believe the real estate agents so their angry. And there was a big legal fight in a nearby county to stop the rail line there from being rebuilt and put back into operation for a commute line.
I just don't think it will happen in many, many decades. A lot of people are making excuses about how the rail lines would fail (passenger or otherwise) or other reasons to keep it from happening. I was very surprised the high speed rail initiative here in California passed! And barely the BART extension to San Jose.
And worse for the most part the government doesn't subsidize the tracks like they do with freeways. The rail lines own the tracks and you'd hear a horrible complaining noise from the public about using tax dollars to build or buy rail lines. Let alone equipment.
The fight and complaints about Amtrak is a good example of the problems of passenger service. Mass transit is a bad word in the United States.
Almost makes me want to move to Switzerland.