CREATE TABLE table_78988 ("Model" TEXT, "Chassis" FLOAT, "Engine" FLOAT, "Year From" FLOAT, "Year To" FLOAT)

Which Engine has a Model of sl500, and a Year From larger than 1999?
SELECT MAX("Engine") FROM table_78988 WHERE "Model" = 'sl500' AND "Year From" > '1999'
SELECT MAX("Engine") FROM "table_78988" WHERE "Model" = 'sl500' AND "Year From" > '1999'