Alexandre Rangel has created a four-hour Portuguese videotutorial that introduces you to Blender modeling and texturing by using a Honda Shadow motorbike as an example. For only R$35 (about $16) you can download the eight chapters, reference images and .blend files.
The training course "BlenderZine 2 - Modelagem Honda Shadow" shows many modeling techniques using Blender 2.42 while creating of a Honda Shadow motorcycle 3D model.
The tutorial is targeted for beginner and intermediate level users and has 4 hours of video narrated in Portuguese by Alexandre Rangel.
The course is available for purchase via download.
Of course it's difficult to say something about a tutorial in another language but hey, if I can comment on Arabic video tutorials, I should be able to say something intelligent about one in Portuguese, right? I've looked at the free ten minute sample that focuses on modeling a part of the motorbike saddle.
The image quality is very good and so is the sound, although the .wmv compression did add some funky 'underwater' sound artefacts (but that may be because I'm playing the file on a Mac). Alexandre has a pleasant voice to listen to and the pace of the tutorial is good (maybe a bit too low if you already have some experience). I can't really make out how often he mentions the hotkeys that he uses but I'm guessing that's in order, too.
Further plusses: no neurotic mouse movements and errors have been edited out (or were simply not made).
Modeling a motorbike in detail is a lot of work but from looking at the sample, I think that Alexandre has done a nice job by taking his time on each part. The longer I think about it, the more I like this approach: pick one complex model to work on and use it to teach several different 3D techniques. In the end, the viewer will have done something to be really proud of.