Definitely rare, I don't think I've ever seen one of these anywhere, let alone Singapore. I'm thinking this is one of early 90's models, badge at the back said 3.6 which makes sense. I don't think anyone would have wanted to import the 6.0 litre V12 version into Singapore at any point :P Thing is, with that body style, this car would still be turning plenty of heads, as it did mine near New Industrial Road.
Jaguar - XJS 3.6 (Early 90's)

That's quite a looker of a front end, isn't it? There's just something about a long bonnet that gets to your heart.

There's a long car if I ever saw one. As someone pointed out on facebook, I'm pretty sure it doesn't fit into a regular parking lot in Singapore. This one was definitely stretched out over a couple. Owner probably doesn't take it into town much, and that just might be a good thing. The fact that its just got two doors just makes the length all that more striking.

Sigh...wonder what one of these would feel like to drive on a long stretch of highway. Hmmm...that suddenly gave me an image of one of
these driving out into the sunset