My uncle has a very nice 3.0 V6 Jag (2001) that he never uses and might well flog to me if I asked him. The temptation is huge. Damn bloody MV6. It's let me down at the time when I really, really need it the most 
As tempting as it may sound I would avoid the Jag, being a 2001 I assume it is either going to be an S-Type or an X-Type I work at a Jaguar specialist and autobox problems and bushes are very common on the S-Type, at £50 a bush and 3 bushes each side at the rear this can get pricey as they rarely fail one at a time.
It is common for the Rear ARB bushes and rear radius arms to fail on the X-Types, the radium arms can be pretty pricey, on the majority of them lately I have noticed that the rear trailing arm bushes are now also starting to fail, It is also common for the transfer boxes to fail on these.
The rear brake pipes on the X-Types seem prone to serious corrosion along with the front brake pipes on the S-Types so which ever it is it could also start to give you a load of grief and end up costing you a fortune, mileage doesn't tend to play a big factor in tese problems, I have seen these bushes fail on cars with sub 40k miles on the clock.
