Which Engine has a Year that's Larger than 2006 and Power of BHP (KW)?
CREATE TABLE "engines" (
  "year" real,
  "trim" text,
  "engine" text,
  "power" text,
  "torque" text,
  "epa_2008_city" text
);
SELECT "engine" FROM "engines" WHERE "year">2006 AND "power"='bhp (kw)';