2015 5.0 Htrac with ultimate pkg advice

[Htrac15]

Hello Genesis owners, was thinking of jumping into the game and was looking at a 2015 5.0 H-Trac with the ultimate pkg,39,000miles, all service records maintained. I know the Htrac was sold in the Canadian market and this one is currently being sold in the states.I wanted to know despite the car still being under warranty, what issues should I look out for or expect and what exactly is covered in the 100,000 mile warranty, any helpful advice and insights would be greatly appreciated. Thanks