Question: Who was the constructor for a FW20 chassis?
SQL: SELECT "Constructor" FROM "2-1137694-1" WHERE "Chassis" = 'FW20';

Question: What engine did David Coulthard have in his MP4-13 chassis?
SQL: SELECT "Engine †" FROM "2-1137694-1" WHERE "Chassis" = 'MP4-13' AND "Driver" = 'David Coulthard';