Esteban Gutierrez Success - 11 de septiembre de 2013 I sent a LOR and SASE in Late July 2013 and received this signed driver card on September 10th 2013.
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Sauber Motorsport AG
Wildbachstrasse 9
CH-8340 Hinwil
Switzerland
Sauber F1 Team Success! (Nico Hülkenberg/Esteban Gutierrez) - 31 de agosto de 2013 I sent LOR and SASE to
Sauber Motorsport AG
Wildbachstrasse 9
CH- 8340 Hinwil
Switzerland
and received 2 drivers cards (Nico Hülkenberg and Esteban Gutierrez)
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