depend on technology:
a 2 VALVE/CYLINDER car engine produce peak power at
2000-2500rpm.
so dun need to step so hard until 4-5k rpm to get that extra
power.
then if you got 4 valve per cylinder, the combustion process become
more efficient.
then you got Variable valve timing(VVT) to cater or compensate to
the lower efficiency at high rpm.
then after that you got variable intake valve timing on top of the
VVT. this is to smoothen out the engine efficiency at all
rpm.
then some engine got variable exhaust value timing also to add to
the above.
hyundai got VVT ? i think only the avante got only.
next, the transmission play a part also.
most efficient is CVT, follow by manual, follow by Auto.
the last most impt thing is the way ppl drive la. esp sounding the
vroom so loud at red light stop ..... trying to prove what
le??
thks
PS: do u smell smoke?? 
