CREATE TABLE table_10706879_3 (winning_driver VARCHAR2, name VARCHAR2)

How many winning drivers in the kraco twin 125 (r2) race were there?
SELECT COUNT(winning_driver) FROM table_10706879_3 WHERE name = "Kraco Twin 125 (R2)"
SELECT COUNT("winning_driver") FROM "table_10706879_3" WHERE "Kraco Twin 125 (R2)" = "name"