Equipped with a good set of snow tires, we take the Porsche 911 Carrera 4S for a wintery joyride. 2009 Porsche 911 Carrera 4S PDK – Short Take http://www.caranddriver.com/reviews/hot_lists/high_performance/porsche_file/2009_porsche_911_carrera_4s_pdk_short_take_road_test?cid=95 2009 Porsche 911 Carrera vs. 2009 BMW M3 – Comparo http://www.caranddriver.com/reviews/hot_lists/high_performance/sports_car_central/2009_porsche_911_carrera_vs_2009_bmw_m3_comparison_test?cid=95