question: Name the gt 2.0 winning team for sports 2.0 winning team for #16 trans ocean motors for castle rock
answer: SELECT COUNT(gt_20_winning_team) FROM table_27561503_2 WHERE sports_20_winning_team = "#16 Trans Ocean Motors" AND circuit = "Castle Rock"
context: CREATE TABLE table_27561503_2 (gt_20_winning_team VARCHAR, sports_20_winning_team VARCHAR, circuit VARCHAR)