Many interesting classic cars are ever increasing in value, and the XK120, XK140 and XK150 models are certainly among that category. This is the essential guide to those models an important read for owners, but more crucially, a constant reference guide to keep with you when viewing a potential purchase. It will help you identify the model that suits you, tell you what to look for when inspecting a car, and provide you with all the necessary procedures to go through to ensure the car is what it appears to be.