I vote that it is not Japanese. In my dictionary of standard kanji (ie the 2000 or so most used characters in Japanese) none of the above appear in combination. the first appears to be 一(ichi) or "1" the second looks like 汽 (ki) or "steam." I think the next thing is a dash "-" and the next is 大 (dai) or "big." The last kanji I have no idea. It is too stylized for my brain.
Since none of this seems to be making sense, I would guess it is either Chinese or just some characters someone put together because they liked the way it looked.
I also asked a passing office worker (a Japanese person) and they had no idea. Granted they mistook the Audi symbol for the Olympic rings, so take it for what it is worth.
The first two stand for "yi" & "qi" and the other two for "da zhong".
"yi" means "one" and "qi" means car! These two together are also the name of "First Automotive Works". FAW is the joint-venture that assembles Audis and Volkswagens in China.
"da zhong" is chinese for "Volkswagen"
So overall it means somthing like "A car by VW" oder "FAW - VW"!