I'd go with image on the back. Team name or Nissan Motorsports on the upper left chest and possibly small 1" x 2" sponsor logos on the right sleeve and charge $25 for the "Team Shirt."

I'm sure sponsors and the team will love to purchse/recieve them too.

Logo only on the front 22.
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If we do not succeed, then we run the risk of failure. - Vice President James Danforth "Dan" Quayle