And spend 10 thousand extra quid?
It's just a rebadged old A4. What's the point?
Save on the depreciation He is going to nuke the value of anything he buys doing big miles - add his private mileage on and he's going to be well over 20k a year. Why buy a nearly new Seat for a 5 figure sum, especially when said car quite literally is simply the old A4 with a new badge?
I dont expect you to agree as you bought an Exeo (I'm sure it's a useful companion to your diesel 3 Series saloon, seems odd to have two pretty much the same types of car), but looking at it sensibly there is little rational reason to spend a pile on an Exeo.
The marginal fuel economy increase of a 2.0 TDI 140 over a 1.9 TDI 130 wont pay for the thousands and thousands of pounds extra to buy.
And a 4 year old 75,000 mile Exeo (Assuming he buys a 1 year old 15k miler) is going to be worth virtually nothing.