CREATE TABLE "alpina_previous_models_petrol_engines" (
  "alpina_model" text,
  "bmw_donor_model" text,
  "alpina_engine" text,
  "power" text,
  "torque" text,
  "production" text
);

Question: Name the production for alpina model being b10 4,6
SQL: SELECT "production" FROM "alpina_previous_models_petrol_engines" WHERE "alpina_model"='B10 4,6';