CREATE TABLE table_8848 ("Rider" TEXT, "Manufacturer" TEXT, "Laps" FLOAT, "Time" TEXT, "Grid" FLOAT)

Can you tell me the sum of Grid that has the Laps of 30, and the Rider of toni elias?
SELECT SUM("Grid") FROM table_8848 WHERE "Laps" = '30' AND "Rider" = 'toni elias'
SELECT SUM("Grid") FROM "table_8848" WHERE "Laps" = '30' AND "Rider" = 'toni elias'