The 2011 SEMA Show features some of the best aftermarket-tuned vehicles on the road today, and we here at Hyundai of St. Augustine have got the inside scoop on our favorite South Korean automaker's offerings from this year's show just for you. You may remember our previous report of a new variant of the recently-launched 2012 Hyundai Veloster, and now a new variant of the ever-popular 2012 Hyundai Genesis Coupe has emerged as…