What should be Honda motorcycles showroom design concept?

Concepts can take anything that looks imprtant for that company. For example, Concepts can be the materials of the bikes. It can be the design elements or forms of the bike.

But the best is to know the theme of the company. I can tell you about the Kawasaki as I was working on it, there is no picture of the motorcycle in their commercials. No girls there. Only a theme. The speed. So, dynamism can be their concept.

Just talk to your friends, you'll get the answers. Or atleast see the commercials, you'll get the theme they put importance on.

Good Luck.