I carry my G29 in a crossbreed supertuck. I don't know if they make one for your gun, however. I mostly use a safepacker while driving -- can't really beat having a handgun strapped to your seatbelt for access.
When I'm driving on longer trips, I wear a shoulder holster. Even when it's hot, it conceals pretty well under a fishing shirt*/one from Eotac that looks like a fishing shirt.
*Just be sure to wear an undershirt underneath the holster.