This was a great map for navigating the roads between the main towns of Corsica. For those planning on heading into the mountains and smaller villages I'd recommend to use the IGN maps in addition to this road map - they complemented each other well on our trip.
Used this or a recent touring holiday of Corsica by car and it was excellent. In fact i think if we had not had it with us our holiday wold have been quite poor. Have to say because of the very differing road surfaces in Corsica a map is essential. Do not go on holiday without a map because a hire car is a must