[Entry] Heavy Pulling

Build a vehicle to pull this trailer up hills. Each hill counts as 10 points.
--Rules--
1. You cannot edit trailer, exept for attatching things
2. No LUA
3. You do not have to use rubber band latch. You can build your own latch.
4. Contest is over on September 16, 2016. So be quick.
5. DO NOT EDIT HILLS.
6. Have fun! :D
7. Oh, and your level must allow derivatives.