Comment Share Cosmo, Cagnazzi join RENNtech Motorsports in AMG GT4 for Pirelli GT4 America April 29, 2021 Chris Cagnazzi and Guy Cosmo will share driving duties of the PRESIDIO #39 RENNtech Motorsports AMG GT4 for the remainder of the 2021 SRO World-Challenge season, starting May, 1st at Circuit of The Americas, in Texas. Comment Share