I may stand corrected, but I don't know of any soundcard with all the functions you listed.
If you are really looking for High Quality Competition sound, do yourself a favor and purchase one of the standalone mobile signal processors. The two that I know of are:
1.) Panasonic CY-AC300 Dolby Digital/DTS decoder;
2.) Clarion DVH920 Dolby Digital/DTS decoder and the LCD Controller for this unit.
I've provided the cardomain store links above, but these units can be had for MUCH cheaper on eBay. Both of these units can act as standalone - your computer plugs into the unit and the unit plugs into an amp. I know for a fact that the Clarion unit has delay timing, but I'm not sure about the Panasonic unit. A few members of our forums have used the Panasonic unit - one such person is Antimatter. Search his posts and you will see a whole thread he has about Dolby Digital in a car.
There is a newer Clarion processor unit called the DVH940, it works with DVC920 LCD Controller and it's more expensive than the older processor, the DVH920 - I am not sure what the advantage is over the older unit.