Compare Tray

Another take on showing users which vehicles/products they've already added to the comparison feature.

This would be a tray that, when the user adds their first vehicle to compare, slides up and shows the vehicle being added in, then it would slide down out of the way, displaying only the toggle arrow and the Compare Selections button.

No matter what page the user is on, they'd be able to toggle the tray up and down to see what vehicles have already been added, or to remove vehicles from the comparison.