Question: What is the highest number of points the Cosworth Straight-4 engine scored?
SQL: SELECT MAX("Pts.") FROM "2-1226463-1" WHERE "Engine" = 'Cosworth Straight-4';

Question: What is the latest year that shadow racing team scored more than 0 points?
SQL: SELECT MAX("Year") FROM "2-1226463-1" WHERE "Entrant" = 'shadow racing team' AND "Pts." > 0.0;