Relatively small turbo + high compression + direct injection = lag free response, strong mid range and still acceptable top end. Two great examples of such modern turbo engine, the BMW's 3.0 l6 twin turbo and AUDI/VAG 2.0FSIT direct injection turbo l4.
Sacrificing power for torque? For a road car torque is obviously more important, torque = drivability. In fact you should consider the other way around, why would you want to sacrifice drivability for a mere extra few kw up the top end?