Well, I think the current undercarriage looks awful, but maybe adding spoked wheels instead of the solid wheels? Other than that, I can't see anything at all.

Description: Name: Gabe Age: 24 Gender: Male Occupation: Train driver / maintainer Works for both Amtrak and Metra as a train conductor. Personality: Kind most of the time, but blunt when needed. Enjoys his job. Made by /e-bag/ May 14th, 2021. Updated July 14, 2021. Do not use without my permission.