Junk
Adjustments
Decrease price by 20%, Decrease full speed by 50 ft., Decrease Piloting modifier by 3, Decrease attack modifier by 1, The vehicle gains the broken condition when reduced to 75% of its Hit Points instead of 50%.
Systems
Unstable Engine
Special
If you have access to inert electronic and mechanical junk, this graft instead reduces vehicle price by 50%. This requires at least 10 bulk of junk for a Medium vehicle. For each size category larger than Medium, multiply the junk required by 8.
These vehicles are made of spare parts and discarded refuse, making for cheap (albeit unreliable) rides.
Source
Tech Revolution pg. 79
