Question: What is the year with a kurtis kraft 500a chassis, and less than 1.5 points?
SQL: SELECT SUM("Year") FROM "2-1235879-3" WHERE "Chassis" = 'kurtis kraft 500a' AND "Points" < 1.5;

Question: What is the year with a Kurtis Kraft 500A chassis?
SQL: SELECT SUM("Year") FROM "2-1235879-3" WHERE "Chassis" = 'Kurtis Kraft 500A';