I need a car that can do 500 mile round trips in a day, thats economical and quiet on the motorway at 80/90mph but also fairly nippy around town (I don't want a barge). Some mid range thrust would be handy when joining motorways from slip roads. Budget is £4000 - £4500.
I've narrowed it down to the following possibilities:-
Saab 9-3 Saloon
1.8T (150bhp)
2.0T (175bhp)
BMW E46 3 Series
318i
320i
323i
320d
What do you think is best and why?
Any "real world" knowledge of mpg figures and annual servicing / maintenance costs for these cars would also be appreciated.