Question: Which rounds did Vic Elford with a Ford Cosworth DFV 3.0 V8 engine have?
SQL: SELECT "Rounds" FROM "2-1140093-2" WHERE "Driver" = 'Vic Elford' AND "Engine" = 'Ford Cosworth DFV 3.0 V8';

Question: What is the chassis for Bruce McLaren with All rounds and a G tyre?
SQL: SELECT "Chassis" FROM "2-1140093-2" WHERE "Rounds" = 'All' AND "Tyre" = 'G' AND "Driver" = 'Bruce McLaren';