to answer your question with a list:
Saab
Volvo
Merc
BMW
I currently drive a 2yo Saab 93 conv - it is our 3rd, and surprisingly spacious. The facelift model is dramatically better than the pre 2004 model. You get a saab practically fully loaded for list price, unlike:
We previously had a Merc Estate, which was like driving a small african nation, but great for carrying loads, and a dream in town/on motorway. I believe the current model has lots of problems. The main problem with this and BMWs, is the car has a list price, but you need to spend a further £10-15K on speccing it up. If you are going to go for a merc, always, always, always, get an automatic. Manuals have poorer resale value.
volvo speaks for itself, - safe, quality, but just so volvo - ish. The XC90 is an honourable execption, but put off by poor emissions and mpg ( and parking/congestion charge hike that goes with that)
BMW - The 320d Touring is ok, as is the current m5. Not really my scene otherwise.