Car Sort: Color Puzzle Level 147 Solution Walkthrough
Board Analysis
Opening, mid-game, and finishing states sampled from the video.

Dense Column Route
Level 147 is a column block inside a rectangular road loop. The top of the block holds yellow and red, the center is packed with green and blue, and the bottom has pink and purple waiting behind the central columns. The video does not solve it by jumping around; it cuts the height of the block layer by layer.
Begin with the yellow columns at the top. They are the first visible blockers above the center block. Then clear the nearby red upper blockers so the loop can feed cars without immediately stopping. Once the top pressure is gone, work the green column through the center, followed by the blue/cyan center cars.
Only after the center is shorter should you take the orange side cars and the pink/purple bottom columns. Those lower colors are dangerous early because they have to pass through the same loop that is still serving the center block.
Practical order:
yellow top columns -> red upper blockers -> green center -> blue/cyan center -> orange side cars -> pink/purple bottom
Keep each column as a complete color batch. The route becomes much harder if the road loop starts holding yellow, green, and pink at the same time.