Meguiar's Ultimate Compound

As with the G3 Pro, Meguiar’s Ultimate Compound is simple to apply. The flip-top cap makes it easy to control how much of the runny formula you apply to your pad, and you get a fairly large bottle.

It removed nearly as many swirls as our top three, but was less effective on scratches.

Crucially, though, it’s more expensive than its rivals and didn’t leave the panel as shiny as the G3.