JCR Motorsports will return to Pirelli World Challenge GTS action this year with three Maserati GT4s driven by Jeff Courtney, Fred Roberts and Walter Bobko.For the 2018 season, team owner/driver Jeff Courtney will once again pilot the No.99 Maserati with long-time partner Kenda Tires, new-for-2018 sponsor SSIC (X-Analytics) and RecStuff.com."I...