SELECT MIN(mpg_us_combined) FROM table_name_11 WHERE transmission = "a6" AND co_2_g_km < 303 AND engine_capacity > 2461 AND l_100km_urban__cold_ = 15.9
Apa MPG gabungan terendah di AS untuk transmisi A6, CO2 G/km di bawah 303, kapasitas mesin lebih dari 2461, dan L/100 km perkotaan (dingin) 15,9?
CREATE TABLE table_name_11 (mpg_us_combined INTEGER, l_100km_urban__cold_ VARCHAR, engine_capacity VARCHAR, transmission VARCHAR, co_2_g_km VARCHAR)