Train carriage replacement

[ZJFishy]

I would love to see a feature for the replacement of train carriages in the future. Currently, one of my biggest pet peeves is upgrading a locomotive, only to find out the train's speed is limited by one of the carriages in tow. I feel that this could be integrated into the same screen as the engine replacement, simply adding more rows to both columns.

[rowdog]

Near the top of the autoreplace menu there is a button labeled "Engines". If you click on the button, you will get a drop down list that lets you toggle the replacement to "Cars".