The levels of noise, vibration and harshness (NVH) in the Magentis's cabin are particularly low, thanks to a studied programme of measures.

These include sound-proofing foam in hollow sections of the bodyshell; the use of front and rear subframes for mounting the suspension; a thick under-bonnet sound-absorbing pad; insulation pads on the cabin floor, in the door cavities and on the bulkhead between the engine bay and passenger cell; triple-layer rubber seals and weather strips around the doors and windows; and aerodynamically refined door mirror shrouds and mountings.

The revised Kia Magentis benefits from extra NVH insulation at the front and rear, thanks to the new suspension top mounts.