The only way your going to get rid of the smoke odor since its in every nook and cranny is to rent a ozone generator...it will have to be left in the car for awhile...a day or 2 maybe....you can call some rental places to see if any one rents one....no cover scent is going to do it....
the odor is on very part of the interior..wire..ac ducts...headliner...seat foam...plastics....you name it the oder is there....you need to wash everything you can get a rag on plus extract every cloth piece except the headliner....and then ozone it...
little info to read
Remove Smoke Odor Caused by California Wild Fires
this shows what a ozone machine will do
AL