Lish
You're very likely to end up accumulating one litre more than you have space for - that's an unwritten rule, like gravity.
Mostly, I reckon an estate or good sized hatchback can get people on their way - 500 litres or so of space is enough to carry a fair amount. Plus you have the flexibility of the back seats going down.
Its nice to be "purpose built" though too - and something like a Navaro, or L200 or Ranger is great if you're rural, or doing a lot of site work. It can be a major pain in places like London though. That said, the Navaro I think is expensive for the money - the L200 is probably far better value, with the Walkinshaw at around £26k - roughly the middle of the Navaro price range. Thing about the Ranger is they just ripped the steering wheel off the American side and blu-tacked it on the UK side. When di we ever have a Ford anything that was deisgnated an"XLT", for example. It has American fuel economy too. I do like the Navaros though.
For me, I'm looking at the Santa Fe hard at the moment - it seems a tough one to beat on paper, and the only thing that's bugging me about it is Bluetooth - I want built-in, not add on. Fussy, but have had both in the past, and built in always seems to work far better.
You know, most of us find a way to fit all we need to when we find the motor we *really* want lol!