The TAPShift paddles are located on the upper center steering wheel supports. One on each side of the center also. You can see them here:
There are badges, but only one on my car on the rear lower right hand corner of the trunklid. It says GTP Competition Group. Here ya go:
Yes, the CompG has the HUD and 5 button DIC also.
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04 GTP CompG 3.8L Supercharged
K&N FIPK/180Tstat/SSC Springs/GMPP STB's/Autolite APP605's/Aluminum Grilles/SPO Tips/17" AE Alloys 185's/2 RockfordFosgate He4410 Subs & 1 P4002 Amp