Hey RB Paul
Conceded regarding your argument regarding the "GT" class. GT does of course encompass quite a range of vehicles designed for long distance high speed cruising/touring. Still, to me there is nothing like the sound of a well tuning and tweaked normally aspirated V-8. Whilst I do not like Merc's at all, their 6.3 lt engine is incredible I think. I won't ever buy a Merc cause they just look too much like taxis, but credit where credit is due for the excellent engineering.
This video should now crush your argument and rule in favour that V-8's are truly the best sounding car engines. To me 4's & 6's are too "twangy/tiney" in sound. The 12's kind of too smooth. V-8's roar like a seriously pissed off tiger! it's a sound that goes right through you. If I could have anything to drive around in on a day to day basis, it would be a Aston Martin Vantage.
https://www.youtube.com/watch?v=Tzw79Zt37b0
https://www.youtube.com/watch?v=a8LaFDSWilM
Listen to this Challenger!
https://www.youtube.com/watch?v=DMwAG5Lcl64
Best car chase in a film - EVER! Game, Set, Match!
https://www.youtube.com/watch?v=31JgMAHVeg0