CREATE TABLE table_30530 ("Rnd" FLOAT, "Date" CLOB, "Circuit" CLOB, "Supporting" CLOB, "Distance" CLOB, "GT Winning Car" CLOB, "TC Winning Car" CLOB)

Who was supporting in round 1 where the gt winning car was dodge viper?
SELECT "Supporting" FROM table_30530 WHERE "GT Winning Car" = 'Dodge Viper' AND "Rnd" = '1'
SELECT "Supporting" FROM "table_30530" WHERE "GT Winning Car" = 'Dodge Viper' AND "Rnd" = '1'