“Your car today will be a Nissan Juke.” Not a sentence a car enthusiast longs to hear. “But if you were interested we have some fun cars for a special discounted rate. There are lots of 2016 Mustangs available.” That’s more like it. My interest in American muscle started and stopped with a fleeting obsession with Eleanor from Gone in Sixty Seconds. I never found any these cars particularly interesting, past the temperate coolness their typically menacing presence gave off. No muscle car made numerical sense to me. Weights comparable to bungalows, 5 litre plus engines with peak outputs of…