Opel has pulled the wraps off its facelifted Antara at the Bologna Motor Show, and the Euro-market midsize cousin to our GMC Terrain has received a host of upgrades. As is the way with mid-cycle refreshes, the Antara’s Theta chassis has been re-tuned, the interior has been reworked and the powertrain is available in a range of configurations.The base Antara is powered by a 2.4-liter, 167