CREATE TABLE table_22011 ("Name" CLOB, "Volume" CLOB, "Engine" CLOB, "Fuel" CLOB, "Output" CLOB, "Torque" CLOB, "Engine ID code ( s ) " CLOB, "0\\u2013100km/h , s" CLOB, "Top speed" CLOB, "CO 2" CLOB, "Years" CLOB)

Name the total number for co 2 for atd/axr
SELECT COUNT("CO 2") FROM table_22011 WHERE "Engine ID code(s)" = 'ATD/AXR'
SELECT COUNT("CO 2") FROM "table_22011" WHERE "Engine ID code(s)" = 'ATD/AXR'