Other techie touches of note include optional massaging front seats, a panoramic sunroof, hands-free keyless entry and blind-spot monitoring. The simple and easy-to-read dials are illuminated in a restful purple glow and head and legroom are well up to par. On the road, noise levels are pretty good — the car has a soundproofing film within the windscreen to absorb vibrations, and the C4 remains the same size as before.