You build an AutoX track on your testing ground. Which elements are not conformant to the rules?

1. 45° turn with a diameter of 20 m and a track width of 2.75 mCorrect
2. Slalom with constant spacing of 10 m
3. Straight with a length of 70 m an a track width of 4 m
4. Hairpin turn with an inner diameter of 6 m and a track width of 3.5 m