Hi Mark, everyone on this group agrees the Rover L Series diesel is the best Freelander. Some may come back and say that's rubbish and that the TD4 is better - but they know the L Series rocks really
So save yourself some cash and don't buy the TD4 - just cos its got 'the BMW engine' - it'll save you a lot of cash and hassle running it as well.
You won't need a garage with an L Series - just change the oil & filters every now and then and drive it! Occasionally other bits go wrong, in owning mine for 5 years I've had to do some work on the brakes and replace a couple of pipes, but they're easy to work on and you can do it all at home quite easily - just put it into a garage every 60K miles for them to change the belts.
Running a Freelander's nothing like a Series - or a Disco/RR for that matter. Everything is so much smaller, lighter and less rusted solid. With the L Series the engine's hardly any more complex than a 2 1/4 either. So its bullet proof and will return the same mpg as a TD4 - little less refined and a bit slower off the lights than the TD4 - but that's because it hasn't got all the electrical and common rail gizmos that fail and cripple the car.
There's lots of buying advice threads in the Freelander section - have a search for an objective view - but remember - all those people that say the TD4 is great - if they were on their shrink's bench, they'd be crying like babies cos they aint got an L Series
Oh and regardless of which model you get - just understand how important it is to run exactly the same make & model of tyres on a Freelander and they've got to be pumped t the same pressure. If you don't know why it may seem petty - but ignoring that will cost you £1,000's - search on here about how the IRD/VCU works - you need to understand that, and you'll get great motoring out of a Freelander. If you don't understand it, at some point you will curse the bloody car, until you realise it was your mistake - I've been there, done that and got the Tee shirt - until I found my salvation in LZ.
Check the 4WD system is still hooked up and working when buying - its amazing how many people buy Freelanders, then realise at some point later they've bought a 2WD car. They're expensive to put back cos there's almost always some severe mechanical (IRD) issues with the car. Be prepared to replace the VCU when you get it - so budget in about £250 plus fitting.
I've written far to much, and there's plenty of info to search but in summary.. make sure its got a working 4WD system, understand how the 4WD system works so you don't have problems and make sure its got a Rover diesel lump under the bonnet