Question: Which engine is in All rounds with Tsugio Matsuda driving?
SQL: SELECT "Engine" FROM "2-16670746-1" WHERE "Rounds" = 'All' AND "Driver" = 'Tsugio Matsuda';

Question: Which engine is used by Team LeMans with Hiroaki Ishiura driving?
SQL: SELECT "Engine" FROM "2-16670746-1" WHERE "Team" = 'Team LeMans' AND "Driver" = 'Hiroaki Ishiura';