I made a mistake. Since I have a company and the XE will be a company car I decided to lease it rather than purchase it, because lease payments are complete tax deductions where a purchase has to be depreciated. And truthfully, we're thinking that we might be interested in getting a new Alfa Romeo Jiulia in a couple of years.
Where I made my mistake was in leasing the XE with the 12000 pr yr mileage allowance. We determined that we want to drive the XE more often than we thought we would and will undoubtedly exceed the allowance. Since I don't want a big bill at the end of the lease for excess mileage I called Jaguar about a month after signing the lease and asked about modifying the terms of the lease to increase the mileage allowance. Since I would be paying more you'd think that they would be willing to work with me, however, I've run into nothing but clerks on the phone who stick with a strict policy of keeping the lease terms that I started with.
It's a shame, because we really like the XE, but will be required to put more miles on our other vehicles rather than enjoy the XE as much as we'd like. So if anyone else is going to lease I suggest you fudge on the high side when you consider the mileage allowance when you sign your lease.