Question: What's the highest scoring team in the round in Ring Knutstorp in which Polestar Racing is the winning team?
SQL: SELECT "Highest Scoring Team" FROM "1-20079931-4" WHERE "Circuit/Location" = 'Ring Knutstorp' AND "Winning Team" = 'Polestar Racing';

Question: How many rounds were there in Karlskoga Motorstadion with Roger Eriksson at the pole position?
SQL: SELECT COUNT("Round") FROM "1-20079931-4" WHERE "Circuit/Location" = 'Karlskoga Motorstadion' AND "Pole Position" = 'Roger Eriksson';