There isn't an official product or character named "Honda Transformer." The closest real-world reference is Honda's ASIMO robot, and there is no canonical Honda-branded Transformer in the Transformers franchise.
Real-world Honda robotics
Overview of Honda's robot program
Honda has developed a range of humanoid and assistive robots over the decades, largely focused on mobility, balance, and human–robot interaction. The most well-known entry is the consumer-visible humanoid project ASIMO, along with earlier HRP research robots used for development and testing.
- ASIMO (Advanced Step in Innovative Mobility) — Honda's flagship humanoid robot, introduced to showcase balance, walking, stair climbing, and responsive interaction.
- HRP series (e.g., HRP-2, HRP-4) — humanoid prototypes built for research and demonstration of mobility and manipulation capabilities.
In short, these real-world robots exist for research and assistive purposes rather than as a consumer product or fictional transformation character, so there is no official "Honda Transformer."
Transformers universe and Honda
Canon and tie-ins
In the official Transformers film and television canon, there is no recognized Transformer whose alternate form is a Honda-branded vehicle, and no character is named or marketed as the Honda Transformer. The franchise features Transformers that transform into vehicles from other brands (such as Chevrolet, Ford, Lamborghini, Porsche, and others) but not Honda as a canonical alt-mode supplier.
- No canonical Honda-branded Transformer in the main film or TV continuity.
- Promotional materials or fan-made content may reference Honda in relation to Transformers, but these are not part of the official canon.
Therefore, within the official Transformers universe, there is no official "Honda Transformer."
Bottom line
If you’re asking about a real-world product, the closest Honda reference is ASIMO and the HRP humanoid robots—none of which are Transformers. If you’re asking about the Transformers franchise, there is no official Honda Transformer character or designation.
Summary
The name "Honda Transformer" does not correspond to an official Honda product or a canonical Transformers character. The closest real-world reference is Honda's ASIMO and HRP robotics line, while the Transformers franchise does not feature a Honda-branded Transformer in its official canon.