LEGO Extreme Engines 31072

The LEGO Creator 31072 box contains two bags with instructions to build three different models: a Formula 3, a racing buggy, and a monster truck. As with real LEGO, it includes the familiar logo and various colors (6 in this model): the classics are well-known to children in the 1960s: white (bl), gray (g), and black (n). The three newer ones are also: dark gray (gf), light blue (cij), and yellow (jo). The pieces fit together perfectly. The size of the elements varies greatly, including both classic bricks and rare pieces (sometimes specifically molded for this model). BRICKS (height H1 or H2): 1x1 bricks (represents the base unit (ub), square brick with H=1 tenon): none for this box = 0 (0ub) 2x1 bricks (2 rectangular pieces with 2ub): 3 white (ref n°) = 4 (8ub) 2x1 bricks (2 rectangular pieces with horizontal/vertical ribbed design, 2ub): 2 white (ref n°) = 2 (4ub) 2x1 bricks (2 pieces for an axle with 2 lateral holes of 5mm, 1.5ub): 2 dark gray (ref n°) = 2 (3ub) 4x1 bricks (4 pieces for an axle with 6 lateral holes of 5mm, 3ub): 2 dark gray (ref n°) = 2 (6ub) 4x2 bricks (2 roof pieces, 45° angles, 4.5ub): 1 white (ref n°) = 1 (4.5ub) PLATES (H=0.33): 1x1 plates (1 round piece, 0.25ub): 3 white (ref n°) + 5 gray (ref n°) = 8 (2ub) 1x1 plates (1 square piece with upper female hook, 0.5ub): 4 dark gray (ref n° 6071226) = 4 (2ub) 2x1 plates (2 rectangular pieces, 0.66ub): 4 white (ref n° 302301) + 1 black (ref n° 302326) + 2 light blue (ref n°) = 7 (4.66ub) 2x1 plates (2 pieces with perpendicular plate with 2 lateral tenons, 1ub): 4 white (ref n°) = 4 (4ub) 2x1 plates (2 pieces with perpendicular plate with 4 lateral tenons, 1.5ub): 2 black (ref n°) = 4 (6ub) 2x1 plates (2 rectangular pieces with horizontal male hook, 1ub): 3 white (ref n°) = 3 (3ub) 2x1 plates (1 rectangular piece with upper female hook, 1ub): 2 white (ref n°) = 2 (2ub) 2x1 plates (1 rectangular piece, H1, with integrated roof tile 30%, 1ub): 2 white (ref n°) = 2 (2ub) 2x1 plates (2 rectangular pieces with terminal male hooks, 1.33ub): 3 gray (ref n°) = 3 (4ub) 2x1 plates (2 rectangular pieces with lateral gutter, 1ub): 2 gray (ref n°) = 2 (2ub) 3x1 plates (3 rectangular pieces, 1ub): 4 white (ref n°) = 4 (4ub) 2x2 plates (4 square pieces, 1.33ub): 1 black (ref n° 302226) = 1 (1.33ub) 2x2 plates (2 square pieces with right-cut panel, 1ub): 2 light blue (ref n°) = 2 (2ub) 2x2 plates (2 square pieces with left-cut panel, 1ub): 2 light blue (ref n°) = 2 (2ub) 2x2 plates (4 square pieces, H0.66, with 2 lateral tenons, 2 ub): 2 white (ref n°) = 2 (4ub) 3x2 plates (3 rectangular pieces with right-cut panel, 1.5ub): 1 gold (ref n°) = 1 (1.5ub) 3x2 plates (3 rectangular pieces with left-cut panel, 1.5ub): 1 gold (ref n°) = 1 (1.5ub) 4x1 plates (4 rectangular pieces, 1.33ub): 1 white (ref n° 371001) = 1 (1.33ub) 4x2 plates (8 rectangular pieces, 2.66ub): 1 black (ref n°) = 1 (2.66ub) 6x1 plates (6 rectangular pieces, 2ub): 1 gold (ref n°) = 1 (2ub) 5x2 plates (10 rectangular pieces, H1 corresponding to 2x2 pieces, perforated (5mm) + 1 brick 2x1, 4ub): 2 white (ref n°) = 2 (8ub) 6x2 plates (12 rectangular pieces, 4ub): 2 gold (ref n°) = 2 (8ub) 16x2 plates (32 rectangular pieces, 10.66ub): 1 gray (ref n°) = 1 (10.66ub) PLATES WITHOUT TENONS (SLATS H= 0.33, 0.66 or 1) 1x1 slat (0 piece, square, H0.66, 0.33ub): 2 gray (ref n°) = 2 (0.66ub) 2x1 slat (0 piece, rectangular, 0.5ub): 2 light blue (ref n°) = 2 (1ub) 2x1 slat (0 piece, rectangular, H0.66, 0.66ub): 1 white (ref n° 4547489) + 2 light blue (ref n°) = 3 (2ub) 1x2 slat (4 pieces, round, inverse, H0.33, 0.5ub): 1 white (ref n°) = 1 (0.5ub) 3x2 slat (0 piece, rectangular with two vertical female hooks, 2ub): 1 white (ref n°) = 1 (2ub) 2x1 terminal slat (0 piece, rectangular, H0.66, rounded, 1ub): 2 gold (ref n°) = 2 (2ub) 2x2 terminal slat (0 piece, square, H0.66, rounded, 2ub): 1 white (ref n°) = 1 (2ub) 3x1 terminal slat (0 piece, rectangular, H1, rounded, 2ub): 4 light blue (ref n°) = 4 (8ub) 4x4 terminal slat (0 piece, rectangular, H1.33, rounded with transverse bar, 5.33ub): 1 white (ref n°) = 1 (5.33ub) 2x1 slat (1 piece, central rectangular, 0.5ub): 1 gray (ref n°) = 1 (0.5ub) 2x1 slat (0 piece, rectangular with upper bar, 0.75ub): 2 light blue (ref n°) = 2 (1.5ub) 2x1 slat (0 piece, rectangular, H, 1ub): 2 light blue (ref n°) = 2 (1.5ub)