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What there is most of

• Plate 1 x 4 · Red×5
• Brick Curved 3 x 1 No Studs · Yellow×4
• Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope) · Yellow×4
• Glass for Window 1 x 2 x 2 Flat · Trans-Light Blue×4
• Plate 1 x 2 · Red×4
• Tyre 14 x 4 Smooth Small Single · Black×3
• Wedge Plate 3 x 4 with Stud Notches · Red×3
• Wheel Centre Small with Stub Axles (Pulley Wheel) · White×3
• Wheel Holder 2 x 2 Thin with Clips, Plane Single · Light Bluish Gray×3
• Brick 1 x 3 · Yellow×2
• Brick Wedged, Sloped Inverted 4 x 4 Triple [2 Connections between Front Studs] · Dark Bluish Gray×2
• Panel 1 x 2 x 1 [Square Corners] · Yellow×2
• Plate 1 x 4 · Yellow×2
• Plate 1 x 8 · Red×2
• Plate Special 2 x 2 with Wheel Holder · Light Bluish Gray×2
• Propeller 3 Blade Small · Black×2
• Wedge Plate 4 x 9 without Stud Notches · Light Bluish Gray×2
• Window 1 x 4 x 2 Plane, Hollow Studs, Single Hole Top and Bottom for Glass · Yellow×2
• Brick 2 x 2 · White×1
• Brick 2 x 2 · Dark Bluish Gray×1

The twenty most numerous parts, longest bar first. Start a checklist to see all 51 part types and tick them off as you find them.