RB20

What there is most of

• Technic Axle Pin without Friction Ridges Lengthwise · White×4
• Tyre 14 x 6 Solid Smooth · Black×4
• Wheel 11 x 8 with Center Groove, One Smooth Side with Black Circles print · Yellow×4
• Brick Curved 2 x 1 No Studs with Red Stripes print · Dark Blue×2
• Tile Round 1 x 1 Quarter · Dark Blue×2
• Bar, Curved U-Shape 2 x 3 · Dark Blue×1
• Brick Curved 2 x 1 No Studs with Yellow Shape, Red Lines, Black Triangles print · Dark Blue×1
• Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) · Red×1
• Helmet, Formula 1 with Trans-Orange Visor pattern and Red Stripes print · White×1
• Minifig Head [Plain] [Vented Stud - 2 Holes] · White×1
• Plate 1 x 1 · Yellow×1
• Plate Special 1 x 1 with Clip Horizontal [Thick Open O Clip] · Dark Blue×1
• Plate Special Round 1 x 1 with Hollow Stud and Bar on Underside - Long Space · Black×1
• Tile 1 x 2 with Yellow Trapezoid, Red Triangles print · Black×1
• Tile Special 1 x 2 with Minifig Neck Pin · Black×1
• Tile Special Round 1 x 1 with Hollow Bar · Dark Blue×1
• Vehicle Base 3 x 9 (Formula 1 CMF) · Black×1
• Vehicle Body, Front Fender 1 x 4, Formula 1 · Black×1

The twenty most numerous parts, longest bar first. Start a checklist to see all 17 part types and tick them off as you find them.