The original car is riding very low, the oversized body is as close to the road as possible. To achieve this all the wheels should sit as deeply embedded in the body as possible. This is not simple with Lego bricks. For the front wheels Mad Physicist has used a panel with an L cross-section – built in upside down. There is no hanging version of the piece, only a standing one. The image below shows that this piece with all the other pieces upside down fit perfectly into the contour of the bodywork.
The width of the car is 11 studs without mirrors but it gets narrower towards the rear of the car. The even-width parts (rear bodywork) fit seamlessly with the odd-width parts (front, roof).
One example how to mix even-width with odd-width is the trunk: the cover is 8 studs wide but its holder has an odd width. The closeup below shows the three small plates with a clip that connect to an even-width plate with a handle.
One more detail that I have only recognized while building: the upper row of slope bricks in the rear windshield are half a plate higher than all the other plates in the car. Having these slope bricks halfway between other plates results in a smooth roof line. The small step at the bottom of the curved bricks above disappears as well as the other small step in the sloped bricks.
Yet another tricky part is the windshield. It looks good but I kept thinking about what keeps it in place. Finally the creator himself let me know that at the bottom of the transparent bricks there is a plate with a clip, attached to a tap that is completely hidden inside the bodywork.
The car is made of approximately 700 bricks. This is a lot for its size. For comparison the similarly sized Lego 5867 car has only 278 pieces! The Lead Sled contains only a few classic Lego bricks, most of the pieces are plates or special parts.
Because I travel a lot during Christmas I did not order the parts yet but it will not be long before I do so. Until then, Merry Christmas to everyone!