This Co-Hog Special Edition BMW 733i E23 in Lapis Blue was handmade and completed on 2/13/84. Only two were ever made. The body and bumpers were constructed from multiple pieces of jelutong and basswood. It measures about 7" (18 cm) long. The tires were made using maple.
Graphics are hand cut from two types of sheet vinyl. I hand drew and then silkscreened my interpretation of the BMW wheels. The logos on the wheels, hood and rear deck are hand cut vinyl - four itty bitty pieces inside a 1/8" (3.2 mm) circle.
The original construction drawing for the Co-Hog Special Edition BMW 733i E23 was the main guide for making the initial prototype. Changes during construction are cryptically noted as additional shaping and sizing was done to make it look right at a small scale.
One dimensional oddity that took me decades to notice, but that I still do even in current drawings, is my unwitting notation of dimensions. They look to be marked in feet and inches but the first number is actually the inches followed by the additional 32nds of an inch. Fortunately, since I'm the only one using the drawings, it doesn't really matter.
The 733 replaced the Bavaria as the largest BMW made for the US and furthered BMW's efforts to develop distinct size differences between what became the 3, 5, 6 and 7 series. BMW Design Director Paul Bracq did the initial design concepts with additional exterior work done by Manfred Rennen. The Hofmeister Knick (as properly spelled in German) on the C pillar was a prominent design feature along with the kidney grilles. The 733 E23's and its many variants were popular and sold quite well.
See a few more Co-Hog Special Editions here.