How many race tracks are in Gran Turismo 4?
51
3
3
2
3
2
3
2
4
3
2
4
3
2
4
1
5
3
2
4
1
5
3
2
4
1
5
3
2
4
1
5
3
2
4
1
5
3
2
4
1
5
3
2
4
1
5
3
2
4
1
6
5
3
2
4
1
6
5
3
2
4
1
6
5
3
2
4
1
6
5
3
2
4
1
6
5
3
2
7
4
1
6
5
3
2
7
4
1
6
5
3
2
7
8
4
1
6
5
2
7
8
4
1
6
5
7
8
4
1
6
5
7
8
4
1
6
5
9
7
8
1
6
5
9
7
8
1
11
6
10
5
9
7
8
11
6
10
9
7
8
11
6
10
9
12
7
8
11
6
10
9
12
7
13
8
11
6
10
9
12
7
13
8
11
6
10
9
12
7
13
8
11
6
10
9
12
7
13
8
11
6
10
9
12
7
13
8
11
16
10
14
9
12
4 tracks
2 tracks
3 tracks
4 tracks
2 tracks
128
128