It is a delight to see an artist at work. This guy starts with a few ready made parts to set up a radio-controlled frame with four wheels, and then starts to model it into a one in five scale model of a classic Ferrari 250 GTO. The 
shows the entire process, and I love the fact he used a small spot welding device to connect the various metal parts.
I would have thought twice to use a few rolls of solder to fill the gaps in the sheet metal, and would have gone with filler instead, but the end result does do it justice.