The GTP paddock will look rather different when the IMSA SportsCar Championship reconvenes for its season-opening Daytona 24 Hours later this month. Felipe Nasr will have a new team-mate to defend his title, after Penske Porsche Motorsport parted company with Dane Cameron. Nick Tandy shuffles into the #7 roster to become Nasr’s third co-driver in as many seasons, while Matt Campbell returns ... K…