What position did the driver from Audi Sport North America finish in the race after 2008?
CREATE TABLE "complete_24_hours_of_le_mans_results" (
  "year" real,
  "team" text,
  "co_drivers" text,
  "class" text,
  "laps" real,
  "pos" text
);
SELECT "pos" FROM "complete_24_hours_of_le_mans_results" WHERE "team"='audi sport north america' AND "year">2008;