Hyundai has brought along two high-performance Genesis Coupes to the SEMA Show to augment is huge fleet of Velosters, Elantras and other modified Korean goodies. We've already dropped the knowledge on both the Cosworth Genesis Racing Series Concept (above, right in blue) – tuned by Cosworth, as you can probably tell – and the Genesis Coupe R-Spec (above, left) that was tuned by ARK Performance.

To recap: the ARK car is rocking 395 horsepower and 340 pound-feet of torque from its 3.8-liter V6. The Cosworth car, meanwhile, is pumping out 389 horses from its V6 – and despite the name, neither Cosworth nor Hyundai has announced an actual racing series for the car. Have a gander at both in our galleries of live images, here and here.