Jaguar wants to build all cars on a single platform.(News)(Jaguar Cars Inc.)(Brief article)

Byline: Mark Rechtin

Jaguar Cars wants to base all its products on the same vehicle architecture, says its top engineering executive.

"Having three different architectures, with three body shops - two aluminum and one steel - is not ideal,'' Al Kammerer, product development director for Jaguar and Land Rover, said here last week at the auto show.

"The ultimate design would be a single architecture. But that requires up-front investment to make it happen.''

That goal will not be achieved with the upcoming XF sedan, which replaces the S-Type in early 2008. The XF will use a redesigned version of the existing S-Type platform, which was shared …