I know nothing about Jags and want to buy one...

Hi guys, I have been looking to buy a used luxury car for my wife so that we can have a nice car for long drives then my car for my econo commute. I have been looking at everything from Lincoln Navigators(gas, WOW!) to Cadillac De Villes(my hair is not grey, YET!) to BMW's(can you say plastic) not even considering a Jaguar once. Last night though, I noticed a 1996 Jaguar XJ6 that was in perfect condition and for a very good price at that! I started to read a little bit about it and learned that it might just be the perfect car for me! I like sports cars but wanted something smooth riding this time instead of the jolty rides I am used to. The Jaguar appears to offer the best of both worlds and I am now going to be taking it for a drive to night. As I said, the car is a '96 XJ6 with 105,000km's on it and is perfect condition, at least in appearance. It is listed for $13995. Apparently the car was purchased by the owner of the dealership who is an ex-Jaguar master mechanic(all according to the saleperson)and he bought it specifically for re-sale on his lot.
My questions are:
is there anything specific I should look for tonight when I take the car for a drive?
Does the price sound right?
Am I getting myself into expensive repairs?

I am not rich by any means and do not usually buy luxury cars. But I wanted to try owning a used luxury car for a while just for short 1 hour trips we take regularly and for my wife and daughter to do running around in safely. This car sounds like the right car to me, do you think so?

I regularly do Slalom racing and drag racing in my car, so performance is usually a requirement but I want luxury, not a bouncy ride. Is the Jag THEE car?

Thanks in advacne for any advice you can give me. I am a car enthusiast and you never know, I might just become a Jag guy!