Jaguar's all-new, compact sports saloon, which goes on sale next summer, will be called the Jaguar X-TYPE, the company announced today. Previously known only by its engineering codename, X400, the four door X-TYPE is Jaguar's first entrant in the highly competitive, fast growing compact saloon segment, where it will compete with the Mercedes Benz C class, Audi A4 and BMW 3 series.