6 Lego Vehicles vs 6 Obstacles (2nd edit)

This edit goes vehicle by vehicle. Enjoy!

0:00 walker
0:51 big wheel
1:28 normal car
2:06 long tracked vehicle
2:45 tractor wheeler
3:23 obstacle climber
4:19 Can we pass every obstacle?

List of obstacles:
1. gap (12 cm)
2. drop (12 cm drop + 12 cm gap)
3. narrow u-turn (20 cm wide)
4. tilt (30 deg)
5. slope (40 deg)
6. wall (20 cm)