3D printing may be mainstream enough not to raise an eyebrow any more, but Local Motors' plan to print cars is still ambitiously unusual. The Phoenix, AZ company brought its latest LM3D Swim prototype to SEMA 2015 this week, promising to kick off production in 2016 of what's shaping up to be one of the most interesting - not to mention customizable - eco-friendly vehicles around.

While automakers have relied on 3D printing for prototyping purposes before now, Local Motors aims to be the first company to deliver a full car, on the road, using the system. According to Elle Shelley, chief marketing officer, there's more than just cashing in on a topical technology to the firm's decision.

In fact, the LM3D will be safer than other vehicles, Shelley explained to me at the Las Vegas show, because its production process allows Local Motors to design in crumple and deformation zones. Effectively, the whole frame can be a complex roll-cage.

The LM3D should be more ecologically-sound than rivals, too. The 3D printing process means less wastage, and the print material itself is designed to be completely recyclable.