Depends on your definition of engineering.
Will it be compared to the HC/D and ZL11LE and Roush mustangs or will it be compared to the $200k Porsche Turbo S in terms pure driving dynamics not just performance numbers?
If editors compare it to the latter we will then know why it took so long.
I expect to see some 997 GT2 RS and 991.2 Turbo S mentions when the reviews start coming out. I will be shocked and disappointed if it comes out as "just a GT350 with a blower slapped on it" as some naysayers insist will be the case. It's really a ridiculous notion. If that were true, they could've/would've released the car a couple years ago.