Table: mclaren_mp4_17_results
Columns: year
chassis
engine
tyres
points

Question: What is the number of points for the vehicle with a mp4-17d chassis earlier than 2003?
SQL: SELECT SUM("points") FROM mclaren_mp4_17_results WHERE "chassis" = 'mp4-17d' AND "year" < 2003

Question: What is the earliest year with a mp4-17d chassis and less than 142 points.
SQL: SELECT MIN("year") FROM mclaren_mp4_17_results WHERE "chassis" = 'mp4-17d' AND "points" < 142