The cadence you get to experience when the XK's engine is pushed toward the 6,000 rpm point is what Jaguar touts as a centerpiece technology feature. The engine's sound is derived from a combination of valve regulation in the dual exhaust pipes, an intake system replete with a mechanical speaker that transmits sound to the interior and the gear box system, which is tuned to offer a low-frequency pitch to the cabin area.

The end result is a carefully calibrated roar with a pronounced British flavor.