Great idea on Jaguars behalf, especially considering the success of Mercedes World.
Personally, even though I am not a fan of Mercedes cars, Mercedes World is an excellent facility. Service workshops, nice waiting area and show rooms, along with a track you can watch at, it makes it an interesting couple of hours for even for the least car orientated person.
If this is all mixed with the Porsche style personalisation test drive program then it will be a success for Jaguar.
I've always thought more manufacturers should have a public show area (other than dealers), where people could just come and prod and poke and drive the cars, even if there was a small fee involved (which could be re-funded if a car was eventually purchased).