Remember you can always make more torque by gears, but you are stuck with the power.
Hold up guys, it's actually pretty simple:
Horsepower = Torque x rpm / 5252.
So... for a 328 (approx):
194bhp = 170ftlbs * 6000rpm / 5252
Torque = Horsepower x 5252 / rpm.
Torque is the turning force, BHP is the rate at which it's done.
When you make you car more powerful, you're adding torque - BHP is the resultant effect. Look at any dyno chart and the torque and BHP lines should cross around 5252 rpm!
Cars that make low torque, will also make low power (unless they rev high, like a bike).
Take a 2.0ltr Civic Type R, much less torque than a 328i, but they rev to 8k+ so they end up making about the same power.
When people talk about whether torque is better than bhp, they really mean the location of the torque. Even if they don't know it.
Race cars sacrifice low end torque for high end torque (so high lift cams, straight through exhausts etc). Making 200lbft of torque at 6,000 rpm is great for a racer, but this will mean your low-end will be crap. So it'll be slower for normal driving.
^^^^^ At last some clear sense
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