What are the names for tracks without a race in class 'GT'.
SELECT name FROM track EXCEPT SELECT T2.name FROM race AS T1 JOIN track AS T2 ON T1.track_id  =  T2.track_id WHERE T1.class  =  'GT'
SELECT name FROM track EXCEPT SELECT T2.name FROM race AS T1 JOIN track AS T2 ON T1.track_id  =  T2.track_id WHERE T1.class  =  'GT'
[{'Name': 'Auto Club Speedway'}, {'Name': 'Chicagoland Speedway'}, {'Name': 'Darlington Raceway'}, {'Name': 'Homestead-Miami Speedway'}, {'Name': 'Martinsville Speedway'}, {'Name': 'Michigan International Speedway'}, {'Name': 'Phoenix International Raceway'}]