truereligion- As mentioned, the Color-X is very gentle and is not abrasive enough to remove marring ("swirls", etc.) from the surface of the paint. For that you need something more abrasive.
Two ways to deal with it: a) remove it (mechanically/abrasively) and/or 2) hide it. What themightytimmah suggested is the latter approach- the IHG fills in the marring and the wax seals the IHG in so it won't just wash away in the first rain. As the wax wears away the marring becomes visible again, that's why you'll have to redo it every month or so. He warned that it's "not be the "Autopian" way of doing things" because some people would consider it a half-@$$ed approach..the "problem" would still be there you just wouldn't see it as readily.
Honestly, doing this stuff by hand is never quick *or* easy. Sorry, I'm not familiar with any OTC products that I can recommend for this (not saying there aren't any, just that I don't know of them). I'd use 1Z brand Paint Polish topped with Collinite, but you'd have to order it.