... Immediate, predictable response is a requirement in any driver's car. Naturally aspirated engines react without delay to throttle inputs, but a turbo engine is vastly more complicated. It has two torque curves—one when it's off-boost and one when the turbo is at full puff. The transition between the first curve and the second is what we call lag—and both how long it takes and how abruptly it occurs change continually.
Despite the claims of marketers everywhere, lag can't be eliminated... When you're approaching the handling limit of a well-balanced car, you need precise control of engine output. You may need a quick jolt of torque to induce oversteer or to gradually increase power to keep the car at its limit in a corner. These adjustments need to happen the instant you request them and in direct correlation to pedal input.
A naturally aspirated engine's output is determined by the position of the pedal and the engine speed, period. Turbos change that into a complicated matrix with far too many variables for a driver to keep track of. At best, turbo lag is a handicap. At worst, it turns neutral, throttle-adjustable cars into insolent, uncontrollable, four-wheeled bastards.
... Modern Ferraris do what you ask, when you ask, how you ask. They are pretty much perfect. Although their forthcoming turbocharged replacements will almost certainly be faster, I fear they will be undrivable without assistance from an onboard supercomputer.
I love high rpm rev'n machines too, just different and Dean and I aren't talking SL-C at this second.
