The Volvo C70 Convertible is a car that has virtually slipped from the popular radar. Part of the reason is that it's been with us for so long, launched as it was way back in 1999. Even then, it was a development of the C70 Coupe, a car that had been in circulation for a good while longer. Despite this, it has sold steadily and been a quiet success story for the Swedish company. Instrumental in reminding customers that a Volvo could have curves and look glamorous, the C70 Convertible makes a sensible used buy as long as you keep your eyes open.