Engines with lack bottom end power?

273,
You are a thinker & that is good.

If you are going to compare low end tq, the 'oomph' factor, between engines, two other factors have to be considered: car weight & drive train [ gearing ].

It is useless to compare one engine's tq to another if these factors are different. It becomes an apples to oranges comparison. With auto trans cars, the c'ter stall needs to be factored in. Quoted stall speeds are just that. A larger engine that has more tq at/near the stall speed will cause the c'ter to have a higher stall speed.

So many variables to take into account if you are going to make a real comparison.