Car Sort Level 89 Solution Walkthrough
Route Reference
Key opening, middle, and finish positions for this route.

Two Shelf Walls Around A Central Spine
Level 89 has six short rows on each side of one vertical road. Several left rows are covered, while the right wall reveals pink, pale, green, and white as the route progresses.
Recommended pairing:
left cyan/red -> right pink -> left orange -> right pale -> left red -> right green -> left blue -> right white -> yellow lower-left -> dark cleanup
Finish one shelf before crossing the spine. Keep both walls at similar heights and do not drain one side completely.
If cars meet in the center, complete the batch already past the midpoint. If the white lower row stalls, green or red remains above it. The final Level 89 position should show balanced colored shelves and an empty spine before cleanup.
Matching The Two Walls
The central spine is the only route shared by all twelve shelves. Start with cyan/red from the upper-left and finish that exposed group before releasing pink from the right. Orange then takes the left side, followed by the pale row opposite it. These alternating pairs lower both walls at roughly the same rate and keep the entry points separated.
Continue with left red and right green. Blue and white are the next pair, but white should not move until blue has cleared the midpoint. Yellow occupies the lower-left approach and therefore belongs near the end. The dark cars are cleanup once the spine no longer carries a shelf batch.
Do not interpret an empty shelf on one side as permission to drain that entire wall. When one bank becomes much shorter, cars from the taller bank must cross an entry that is still feeding from the opposite direction. Instead, expose only the next matching-height shelf.
If two cars face each other at the middle, continue the one already below the midpoint; it has the shorter path to its garage. Then complete the row it came from. A stalled white car indicates that the right wall was lowered faster than the left, usually leaving green or red active above. Restore the alternating rhythm and the spine will reopen without sacrificing the lower corner.
Keeping The Shelf Heights Balanced
After the opening cyan/red and pink groups, compare the highest occupied shelf on each wall. They should be roughly level. Repeat that check after orange/pale and again after red/green. The exact number of visible cars matters less than preventing one wall from feeding the center several rows ahead of the other.
Blue and white form the last important cross-spine pair. Let blue clear the midpoint completely before white enters. Yellow then has the lower-left turn to itself, and the remaining dark cars can use the cleared spine for cleanup. If one wall is already two shelves lower, stop opening it. Finish the highest exposed color on the taller side until the two entry points align again. That restores the alternating route without asking cars to pass in the single central lane.