The C5 has had a thorough facelift for 2005. There’s a sleeker look, extra kit and a new 1.6 diesel unit. It’s also about 12 cm longer than the model that ran from 2001-2004. But it’s the new on-board technology that Citroën believes will interest buyers the most. There’s an innovative lane departure warning system that alerts the driver if the car strays over the white lines, a maximum speed limiter, which can be set by the driver and directional xenon headlamps.