When ever I hear discussions about needing a 5.0L or a V8 over a V6 or whatever, I always get reminded of Spinal Tap when Nigel (lead guitarist) shows off his Marshall Amp that "goes to 11". Nigel explains that unlike regular amps, this one has that extra kick. Reiner asks Nigel why not just make a louder amp with the regular 10 setting as the highest.
Nigel looks at Reiner and quite innocently says "but this one goes to 11".
When you think about it, they are both right. You can make a regular amp lounder but one that goes to 11 is special and unique.