Which engine has a year later than 2006 and 60 as the points?
CREATE TABLE "complete_american_le_mans_series_results" (
  "year" real,
  "entrant" text,
  "class" text,
  "chassis" text,
  "engine" text,
  "rank" text,
  "points" text
);
SELECT "engine" FROM "complete_american_le_mans_series_results" WHERE "year">2006 AND "points"='60';