The best way I've found to achieve the look you are trying to achieve (I'm assuming this is a dark car), is to go over the finish with an ultra fine polish. Of course , this is once the defects are removed.
When using an UF polish, your eyes may not be able to see the difference locally on a test spot. But, if you polish the whole car correctly and you step back and look at it - it should almost glow.
Of course, there are soooo many other variables. If your looking for a polish recommendation to achieve this, I like Optimum Finish Polish or Rupes Diamond Ultra Fine (with Rupes' system) - each with the appropriate finishing pad.
A lot of people will recommend Menz SF 4500 to "jewel" with. It's a good polish and does leave stunning results. However, I've gotten the same results with the other 2 polishes, with less polishing time - an no gummy pads. The Optimum Finish is SMAT. Get in - Get out. 3 or 4 gloss boosting passes is all you need. No need to "break down" the polish.