Transtech

Transtech is an unreleased line of toys under the Transformers franchise.

After the Beast Machines toyline ended, Hasbro planned a follow-up series called Transtech with character designs commissioned from designer Draxhall Jump. The Transtech line was intended to take the Transformers toyline to its design limits with futuristic-looking bodies and vehicle modes instead of the animal modes used in Beast Wars and Beast Machines. The series was planned to include several surviving Beast Machines characters, one character who died in Beast Wars, and several Transformers: Generation 1 characters. Many concept sketches and several toy prototypes were created, but Hasbro abandoned the idea, importing Car Robots to their markets as a placeholder under the title Transformers: Robots in Disguise until the Transformers: Armada franchise was in production.

Despite this, the Transtech eventually made their way into the Transformers mythos through the Timelines comics associated with the annual BotCon convention. In this medium, the Transtech are the native inhabitants of a reality referred to as Axiom Nexus, which serves as a hub for travel between dimensions.

Although the Transtech line never reached production, prototypes for Starscream and Cheetor were constructed, and eventually found their way into the hands of private collectors. Concept sketches have also been seen for Blackarachnia, Cheetor, Depth Charge, Megatron, Nightscream, Optimus Prime, Scavenger, Shockwave, Silverbolt, Starscream and a new character called Immorticon. Below is a more descriptive guide to the designs:

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Wikipedia