If you can do it as a signboard, it shouldn't be too difficult in o2c. A picture of the logo is treated the same as any bother texture - bricks, tiles etc. You just have a dedicated entity and stick it on. The picture below was not done in o2c but the procedure is the same. The logo was lifted from a web page. You can see it again on the sign in front of the yellow truck.
I don't think o2c does alpha channels so, if the logo is a complicated cutout, you are probably better of looking elsewhere. Unless this has been improved and I don't know about it, the other problem with o2c is the lack of repeatibility in the views. This means getting a view of the logo and a view of the model and putting them together in a graphics programme is very difficult even though you can solve the alpha channelling then. If you can't match the perspective properly, you are better off omitting the logo.
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Nick Pyner
Dee Why Beach NSW