For a fast car you want exactly what I said, torque to hit its maximum as early as possible and to hold flat for as long as possible (for as many rpms as possible).
Vehicles good for towing have a similar characteristic, they reach maximum torque very early in the RPM range, however they don't hold flat for a long rpm and drop off very quickly as revs climb. (Think of a diesel van that loses all power at 3500rpm).
So have a look at this very quick dodgy paint graph I did. In no way is this accurate or based on anything, it's mearly to help understand it all and to get a visualisation. (I swear, if this graph starts an argument....)
You can kind of see a basic relationship of what certain "general" cars have. Obviously every car is different and therefore every torque graph will be different. But the basics still remain similar.