With its sights set on the BMW 3 Series and the Mercedes-Benz C-Class, Jaguar could be planning a full range of models for its upcoming entry-level car - possibly called the XS.

The XS will replace the X-Type, finally giving Jaguar a product in the highly competitive luxury compact sedan segment. According to sources, the car will also be available with coupe and wagon bodystyles (rendered images below).

Jaguar's upcoming 3 Series and C-Class fighter seen testing and wearing a modified XF body is also poised to be clad in an all-aluminum monocoque body structure, similar to the XJ, to save weight.

According to Adrian Hallmark, Jaguar's Global Brand Director, an aluminium monocoque is a first for this market and on this sort of scale, by the time they go on sale, the new saloon, coupe and estate will be the most efficient, refined and advanced cars in their class.

Plus, the car is expected to be offered initially with Jaguar's small capacity turbocharged four and supercharged six-cylinder petrol and diesel engine. This will also mean that entry-level cars are able to emit less than 100g/km of CO2 without the need for hybrid technology.

The baby Jaguar is scheduled to be due in 2015 and it sure is one exciting cat. Purr.