Transformers

The Transformers are a series of transforming vehicles constructed by Miles "Tails" Prower from scrap's of Dr. Ivo "Eggman" Robotnik's technology.

Tornado
Inspired by Amy Rose's transforming vehicle Breeze, Tails' first transforming vehicle was the Tornado 2, which was able to switch between biplane and x-wing forms. The Transformers series proper began with the Tornado 3, which included both plane forms as well as the Cyclone walker mode and Tornado Racer land vehicle mode.

Speed Star
Tails built the transforming Speed Star for Sonic the Hedgehog to replace the Cyclone he had previously used. It features sports car, jet aeroplane and speed boat forms.

Land Breaker
The Land Breaker was constructed to replace Knuckles' Tempest. Its wheels can be configured into three-wheeler and four-wheeler modes, in addition to a hovercraft mode similar to that of the Breeze.

Pink Cabriolet
The Pink Cabriolet is an improved form of Amy's original Breeze vehicle, capable of hovering flight.

Egg Transformer
Dr. Eggman constructed the Egg Transformer to counter Tails' Transformer series. Like the Speed Star, it has forms for travel across land, air and water.

Metal Booster
Metal Sonic's booster was similarly modified for air and water capabilities to accompany the Egg Transformer.

G.U.N Transformer
The Guardian Units of Nations began development of the G.U.N Transformer based on the Tornado 3 after the ARK Incident.