Audi
The only car company that i am aware of with 4 circles is Audi and i believe that they are German engineered luxury vehicles
Its AUDI
opentable
potato chips are delicious
The Kicker 4-channel Car amp has the Kicker logo on it.
Audi car is the car which is manufacturered features a car logo that has four interlocking rings. In addition, Audi car is served in all over the world.
Maybach uses the logo seen here http://www.cartype.com/pages/1468/maybach $300k car
Audi
Opel
4/(7) = 4/7 is the ratio of circles to triangles. Some prefer to express this as 4:7.
It is 4/1.