Engine sounds are disappointing

I could care less what the planes sound like in external view (excepting, of course, the sounds of other planes as they fly close to mine). The sound from my cockpit however is very important, and CoD fails very badly on that score. The engines sound like a car's and the lack of wind-noise AND engine-noise variation/volume, especially with the cockpit opened and then leaning my head out of it, make a travesty of the sound-coder's work. In flight, canopy closed, headphone's on, the sound should be rather muted (single-engine fighter). But it should be a beast of a noise, sat between a pair of DB601s (Me110). Canopy open...come on.