The Herman White 400G appears to be a high-performance luxury sedan or executive car, possibly a concept or limited-edition model. While exact details are unclear (as it may not be a widely recognized production vehicle), the name suggests:

"Herman" – Could refer to a boutique automaker or a custom build.

"White 400G" – Implies a high-end variant (400G may denote engine power, like 400 hp, or a model designation).

Likely features premium materials, advanced tech, and a powerful engine (possibly V6/V8 or hybrid).

If this is a fictional or prototype vehicle, specifics would depend on the creator's design. For real-world models, check brands like Mercedes-Benz S-Class, BMW 7 Series, or Lexus LS.