Question: When the engine Ford Cosworth DFV 3.0 V8 has a chassis of M23 and in rounds 14-15, what is its Tyre?
SQL: SELECT "Tyre" FROM "2-1140086-2" WHERE "Rounds" = '14-15' AND "Engine" = 'Ford Cosworth DFV 3.0 V8' AND "Chassis" = 'M23';

Question: Which driver uses the TS16 chassis?
SQL: SELECT "Driver" FROM "2-1140086-2" WHERE "Chassis" = 'TS16';