- Engines sorted best-first — your owned engines now list by most cars, then top speed, in both the Rail Yard and the trip builder, so your best is always on top.
- Fixed engine auto-select — arriving at a destination (or buying an upgrade) now defaults to your best engine instead of snapping back to your original starter.
- Location levels — each unlocked destination now shows its level (e.g. "LVL 3") in the trip picker.
- New "How to Play" popup — an on-demand refresher in Settings covering the core loop (pick → assemble → type to travel → sell), for anyone who's past the tutorial.
- Tutorial wording fix — upgrades no longer claim to make a car "carry more"; the copy now correctly says they make it faster and more profitable (matching the real Top Speed / Idle Speed / Income enhancements).