I love the old K-Line 21 inch passenger cars, especially the business cars and try to get them when they’re priced right. Here’s my K-Line Business Car “Santa Fe”. I changed the trucks to MTH ones and removed the brake cylinders and all associated bracketing (this car has disc braked trucks) and changed the diaphragm to an Atlas tube style one that they use on the Comet cars to make it look like more of a modern day business car.
Thanks,