Ecto-1 & 2

Notable parts

• 3 parts come in a colour no other set has for that mould: Arm Skeleton Bent with Clips at 90° [Vertical Grip] (Red) ×2; Hair High Bangs, Large Wavy Curls and Small Bun (Bright Light Yellow); Torso Skeleton, Angular Rib Cage, Plain (Trans-Brown).
• 2 printed parts are only in this set: Brick Curved 2 x 2 x 2/3 with Red, Light Bluish Gray and Black Stripes Print (White) ×14; Brick Curved 2 x 1 No Studs [1/2 Bow] with Ecto 1 Stripes Print (White) ×2.
• 7 parts appear in only a few other sets: Plate Round 2 x 2 with Rounded Bottom [Boat Stud] with Ghostbusters Reboot… (Dark Bluish Gray) ×4 — also in 71242 New Ghostbusters: Play the Complete Movie; Technic Gear 12 Tooth Bevel (Red) ×4 — also in 9754 Dark Side Developer Kit; Hair Updo with Tight Curls and Elaborate Braids (Black) — also in 76103 Corvus Glaive Thresher Attack; Brick Curved 2 x 2 x 2/3 with Ghostbusters Print (White) ×2 — also in 21108 Ghostbusters Ecto-1, 71228 Ghostbusters Level Pack; Leg Skeleton (Red) ×2 — also in 30425 CRU Masters' Training Grounds, 10300 Back to the Future Time Machine; Tile 1 x 2 with 'ECTO-1' and 'NEW YORK' License Plate Print (Bright Light Orange) ×2 — also in 75827 Firehouse Headquarters, 21108 Ghostbusters Ecto-1; Fairing, Motorcycle, Vintage (White) — also in 76035 Jokerland, 10767 Duke Caboom's Stunt Show.
• 7 moulds first came out in 2016, including in this set: Wedge Plate 2 x 2 Left ×4; Wedge Plate 2 x 2 Right ×4; Plate Special Round 1 x 1 with Hollow Stud and Bar on Underside ×2; Hair High Bangs, Large Wavy Curls and Small Bun; Hair Large High Bun; and 2 more.
• 5 existing moulds first came out in their colour in 2016, including in this set: Tile Special 1 x 2 with Sloped Walls AKA Money / Gold Bar [Ingot] (Black) ×8; Brick Curved Inverted 2 x 1 (Black) ×4; Leg Skeleton (Red) ×2; Tile Round 1 x 1 (Black) ×2; Toolbox (Dark Blue).
• 14 minifigure parts with their print are only in this set: Head Top Gargoyle Horns and Ears with Lime Print (Red); Hips and Dark Tan Legs with 2 Large Front Pockets, Silver and Orange Stripes… (Dark Tan); Hips and Dark Tan Legs with Pockets and Silver and Orange Stripes (Dark Tan); Hips with Dark Tan Legs and Black Boots Pattern with 2 Pockets, Silver and… (Dark Tan); Minifig Head Abby Yates, Dual Sided, Reddish Brown Glasses, Bright Pink Lips… (Light Nougat); and 9 more.

Calculated from Rebrickable’s public set inventories, excluding sticker sheets and spare parts.