I just want the ecomodder ethos to be represented in the best possible way out on the highways.
Polymetal
Alumipanel
Grimco Maxmetal
There are other brands I see on scraps that I scavenge at the local hippy recyclers. Generally available in 3mm and 6mm thickness in 4x8, 4x12 and 5x10 foot sheets. My local supplier, Multi-craft Plastics has 3 pricing levels, end-user, retail and wholesale. I recall something like $100-150 for a 4x8 sheet. Some varieties are single-sided and Grimco offers aluminum skins twice as thick as the ususal .007".
Here's a model of an aero shell (in this case a 'teardrop' trailer) made of flat strips.
This actually follows The Template at low resolution.