26/08/2008 21:06. Our spy photographers have snapped a prototype of the next-generation Jaguar XJ being put through its paces at the Nurburgring.

Although hidden under bodywork from the current car, the test mules blistered wheelarches and extended front end give a good indication of the crucial models larger external dimensions.

Jaguar insiders have previously told Autocar that the new XJ, which uses the internal code X351, uses the aluminium chassis of... // Autocar