Yes,
Horsepower = RPM x Torque ÷ 5252
Superbikes have tiny engines to keep weight feathery, and to make insane amount of HP, they rely on engine revolution.
Muscles cars, on the other hand, rely on sheer amount of torque to make HP and hence they've HUGE V8s.
(P.S BTW, R6 STILL makes more torque than most 250-450cc motorcycles).
And I'm also aware that the more you move up the peak torque in the rev range; the more pitiful it gets in the low-end as seen in these Torque & HP Dynos Charts:


BUT;
Add a 'spooler' and this deficiency in torque will be addressed! Hence most 660cc Japanese Cars are turbo-charged.
Besides, EFI engines with dual overhead cams, 4-Valves per cylinder and MUCH higher compression ratio tend to have better torque characteristics than Carburetted Suzi Junk you're so enthusiastically clamoring about, brother. And if that's not enough;
JAPANESE CARS USE MORE GEARS! AS MANY AS 7!
Their small, tiny and pathetic engines (As you like to call them) may not be able to make sheer torque; but with shorter gearing and closed ratio gearbox, they can 'simulate' high acceleration. So, your statement is incorrect, I'm afraid! People compare their acceleration to 1,300cc cars for a reason!
I know you're a senior member of PakWheels and I respect that; but you're deliberately ignoring some basic facts while emphasizing on others to prove yourself right and to defend the car you purchased and own and that only exposes your desperateness and sheer bias. No offense.
If someone is a junior member here in Pakwheels doesn't means he know absolutely nothing about engines.
Good Day.