Updated my original post with the final pics.
I have always been a huge fan of Brabham, the team, and Brabham, the driver. My design is something like a tribute to their winning days in the 80s, when Brabham BMW was a top team. The number plate references the 1983 season and is heavily inspired on the gorgeous Brabham typography from that era.
For sponsors, besides obvious BMW, Brabham Automotive and Parmalat decals, I have chosen mainly tech companies, since this is a trend in the current F1 grid.