Right then…
I bought one recently for the very reasons you've stated. I was lucky enough to pick up a white one with sliding door windows on a 56 plate for £3K!!!
It's a CDTi, and very economical (55mpg+); I drive from Wadhurst to Crystal Palace and back every day (94 miles)on £44 worth of gas. You can fit 5 bikes with wheels in the back with the seats down, or three broken down and keep the seats up. It's a very nice drive, but quite gutless and in no way a race car…
I bought it because we decided to take bikes and the dog up to Scotland this summer. I'm converting a Fiamma rack to hang off the back, so that the dog and bags are comfortable on route. I'm absolutely stoked with it; all my mates like the idea, and its the best of both worlds.
Hope this helps!