One more HP vs Torque question?

Question

Car companies confuse me,

My 5.9 Dodge Ram boasts 230 hp @3,000 RPM's and then under it lists 330 ft/lbs of torque @4,000 RPM's

that means at 3,000 RPM's it would be producing 402 ft/lbs of torque, why wouldn't they boast that instead of the 330?

that also means at 4,000 rpm's it is producing 251 HP, is just basically up to there marketing dept?

I know you want good torque at higher RPM's because the longer you can stay in a gear without shifting the more power you get, is that why they list at 330 @ 4,000 so the buyer knows it maintains a good amount of torque through the powerband?

using HP = Torque x RPM / 5252 and the reverse,

Torque = HP x 5252 / RPM

Answer 1

Well I guess you know nothing about cars.  Your torque curve and HP curve are not related with a simple formula.  Your forgetting about gears.

Answer 2

It's just one of those marketing/technical data that you have to live with. It's just a numbers game and they all mean the same.

Just go ahead and enjoy driving your Dodge Ram.