Below you can find logos, similar to the Opel 5.

Opel 10 Opel 10 vector
OPEL autom 1 OPEL autom 1 vector
opel4 1 opel4 1 vector
Opel 4 Opel 4 vector
Opel Credit Opel Credit vector
Opel 9 Opel 9 vector
opel 1 opel 1 vector
Propel Fitness Water Propel Fitness Water vector
Propellerhead Software Propellerhead Software vector
Opel Opel vector
Opel Opel  vector
OPEL 2 OPEL 2 vector
Michigan Propellers Michigan Propellers vector
Opel Motorsport Opel Motorsport vector
Typhoon Propellers Typhoon Propellers vector