From the 2015 brochure. No mention of better than the Tech Package.
TECH PACKAGE
Genesis 3.8 Signature Package plus:
+ Ultra premium leather seats
+ Leather-wrapped steering
wheel with haptic feedback
+ Power driver seat cushion extender and side bolster
+ 7" TFT LCD cluster display
+ Lane Departure Warning System
+ Lane Keep Assist
+ Smart Cruise Control with stop/start
+ Automatic Emergency Braking
+ Electronic Parking Brake with Automatic Vehicle Hold
+ Presafety seatbelt
+
High Beam Assist
+ Front and Rear Parking Assistance System
ULTIMATE PACKAGE
Genesis 3.8 Tech Package plus:
+ Genuine matte finish wood trim and aluminum trim
+ Heads-up display
+ Dual-mode vent control with CO2 sensor
+ Premium Driver Information System navigation with 9.2" HD Display
+ Lexicon® 17-speaker Discrete Logic 7® Surround Sound Audio System
+ Power trunk lid
GENESIS 3.8 HTRAC ALL
WHEEL DRIVE
Genesis 3.8 Standard Equipment plus:
+ Heated rear seats
+ Heated steering
wheel
+ Headlight washer