Like the XT4, the GT4 has a familiar Cadillac grille that is neatly integrated and not too oversized. It’s flanked by slim headlight clusters and forms part of an otherwise clean front end. From the side, the GT4 has almost wagon-like proportions. It has a long hood and appears to sit quite low to the ground. Some plastic body cladding is visible, and there is a GT4 badge on the rear pillar at the end of the upswept beltline. Unlike the XT4, the GT4’s angular taillights are sited lower down and don’t wrap around the rear window. Here, once more, the car’s fuss-free design has a premium aura about it. The patent images included a sportier derivative with an entirely black grille and unique exhaust outlets.