For anyone with an interest in, or who is thinking of buying, one of the already classic Jaguar XK sports cars from the 1996 to 2005, this Essential Buyer's Guide is a vital requirement. All the models are covered, from the early 4.0-litre models with the infamous Nikasil engines, through to the very last and highly sophisticated 4.2-litre S, with mention to the special editions available in selected markets.