All you can say is the design is now 8 years old, and it's still one of the best looking cars on the road today. I've only had the car for a year and a half, but have been very pleased with it. The performance, handling, build quality, and reliability are all exceptional. I don't typically keep cars for more than a year, but I'm making an exception with this one. Just can't seem to find another one that I think has better styling.
On a scale of 1 to 10, I give it an 11 on the 'fun to drive' scale. The navigation system is great, and the 18" wheels look great when they're chromed. The convertible top doesn't stow away as well as other current luxury convertibles, but I think it gives it a nice retro look.
Resale value on the Jags isn't the best as of late, buying pre-owned is most definitely the way to go.