This was the most challenging custom I've ever made. Wheeljack is a Lancia Stratos Silhouette Grp V. I tried and tried, and could not find a mini-con sized toy or model anywhere for this. I also could not see changing his transformation. The only choices were to use a Hot Wheels car (too big) or to build one from scratch (never done that before). So I tried building from scratch. This took about five months of on-and-off work. I am satisfied with the results, as it looks more like a Silhouette than anything out there in that scale. Again, not transformable. The robot mode you see is mostly the Mini-con that came with Armada Blurr, with some Wheeljack PVC parts and a scratch-built chest.