all the cars on that show were running slow, high elevation maybe...the gto runs low 13'* on average for a 05. ive got that show saved on my computer, its pretty badass they must have went through at least 2 sets of tires on those gto'*. it was the grand prix gxp too, ls4 and beefed up 4t65hd (stonger than the 4t65hd used in the 04 l67 cars).
cadillac had cylinder shutoff in the 70'*, its nothing new, and saves you 1-2mpg....whoopee. but it helps sell v8 cars.
the wheel hops not a big problem for the 05'*, and easily fixed, unlike the cts-v
modded & dropped 95 Aurora - SOLD for a 2001 Alero GLS - which is now being sold for a 93 SSEI WHICH got sold for a modded 98 regal GS!!!
98 regal GS:
3.4 / thrasher intake / SLP powerflodual exhaust / 3-2.5" downpipe w/ highflow cat / DHP 1.0 / afc 2.2 / gmpp handling package / other small things