Prototypes are computer-generated versions of the engines which have been used in place for official images and on checklists. There are few differences between some of the prototypes and the final produced versions.
Iron 'Arry as Shazam!
Sidney as The Penguin
Paxton as Lex Luthor
Millie as Catwoman
Henry as Green Arrow
Stephen as Sinestro
James as Braniac
Percy as Reverse Flash
Gordon as Darkseid
Troublesome Truck as Scarecrow
Spencer as Doomsday
Rosie as Hawkgirl
Porter as Captain Cold
Gator as Killer Croc
Ben as Plasticman
Bill as Clayface from Batcave
Warrior Thomas from 50 MINIS!
Warrior Percy from 50 MINIS!
Warrior James from 50 MINIS!
Warrior Diesel from 50 MINIS!
Warrior Millie from 50 MINIS!
Holiday Thomas from Advent Calendar
Holiday James from Advent Calendar
Holiday Henry from Advent Calendar
Holiday Toby from Advent Calendar
Holiday Diesel from Advent Calendar
Holiday Ben from Advent Calendar
Mining Percy from Twist-n-Turn Stunt Set
Animated Racing Thomas from Motorized Raceway
Animated Racing James from Motorized Raceway
Glow in the Dark Thomas from Glow in the Dark
Glow in the Dark Percy from Glow in the Dark
Glow in the Dark James from Glow in the Dark
Glow in the Dark Paxton from Glow in the Dark
Glow in the Dark Charlie from Glow in the Dark
Insect Porter from 30 pack
Insect Hiro from 30 pack
Insect Troublesome Truck from 30 pack
Steel Thomas from Steelworks Stunt Set
Slime Bertie from 30 pack
Slime Stanley from 30 pack
Slime Victor from 30 pack
Exclusive Launcher James from James Launcher
Exclusive Launcher Thomas from Thomas Launcher
Exclusive Launcher Percy from Percy Launcher
Exclusive Launcher Diesel 10 from Diesel 10 Launcher
Exclusive Launcher Spencer from Spencer Launcher
First Metallic James prototype
First Robot Toby prototype
First Racing Thomas prototype
Thomas as Superman
Thomas as Batman
Percy as Robin
James as The Flash
Diesel 10 as The Joker
Spencer as Cyborg
Charlie as The Riddler
Millie as Harley Quinn
Gator as Green Lantern
Stephen as Sinestro
Henry as Green Arrow
Rosie as Starfire
Toby as Blue Beetle
James as Brainiac
Hiro as Bane
Percy as Reverse Flash
Emily as Poison Ivy
Belle as Batgirl
Gordon as Darkseid
Ferdinand as Martian Manhunter
Iron 'Arry as Shazam!
Sidney as The Penguin
Paxton as Lex Luthor
Scruff as The Atom
Samson as Black Manta
Diesel 10 as Solomon Grundy
Stanley
Ferdinand
Flynn
Troublesome Truck
Breakfast Thomas
Chocolate Percy
Bumble Bee James
Patchwork Hiro
Yellow Victor
Graffiti Gordon
Graffiti Toby
Graffiti Victor
Graffiti Luke
Graffiti Paxton
Creature Stanley
Creature Gator
Creature Dash
Creature Samson
Creature Troublesome Truck
Sports Edward
Sports Bill
Sports Salty
Sports Bash
Sports Porter
Sweets Emily
Sweets Skarloey
Sweets Charlie
Sweets Ferdinand
Sweets Sidney
Electrified Henry
Electrified Spencer
Electrified Iron Bert
Electrified Hiro
Electrified Luke
Racing Percy
Racing Flynn
Spooky Thomas
Spooky Edward
Thomas as SpongeBob from SpongeBob SquarePants 4-Pack
Percy as Patrick from SpongeBob SquarePants 4-Pack
Bash as Mermaid Man from SpongeBob SquarePants 4-Pack
Emily as Pearl from SpongeBob SquarePants 4-Pack
Toby as SpongeBob from SpongeBob SquarePants 9-Pack
Spencer as Gary from SpongeBob SquarePants 9-Pack
Skarloey as Mr. Krabs from SpongeBob SquarePants 9-Pack
Rosie as Mrs. Puff from SpongeBob SquarePants 9-Pack
Porter as Barnacle Boy from SpongeBob SquarePants 9-Pack
Millie as Sandy from SpongeBob SquarePants 9-Pack
Gordon as Squidward from SpongeBob SquarePants 9-Pack
Diesel 10 as Plankton from from SpongeBob SquarePants 9-Pack
Thomas from Motorized Raceway
James from Motorized Raceway
Second Metallic James prototype
Second Racing Thomas prototype
Second Robot Toby prototype
DC Super Friends 4-pack mock-up box
