Estate advice £10k budget

[R66bby]

Hey guys, looking for some input.
Today I test drive a Volvo V60 D4 2013, a Bmw 320d m sport estate, and a Audi A4 avant 2.0 tdi se.

I think I liked the Audi the best out of the lot and the BMW the least.
I have £10k to spend, I want decent MPG as my commute is 100 miles a day.

What would you lot buy? Not just the above cars but additional suggestions would be great.

[R66bby]

Also would people go higher miles on a newer reg? Or lower miles on a older reg?

[R66bby]

Cheers guys
I'll have a look