Hi, If your thinking to buy a Terios first check for Service History as this is very Important and try and go for resonably low milage,as there are many out there with 60k 70k 80k+ miles. As you say parts are of the pricey side,I just fitted to my 06 Terios a new set of pan hard rod bushes double type inner & outer that cost £60 and £25 for the plain one,could not get these as after market type, these are one of the weak spots on the Terios!! just drive over rough ground and you will feel the back end tends to sway about a bit, but easy enough to fix all and all they are really bullet proof, just make sure you do a good service on it,change the front diff oil as this sits below the engine and tends to get cooked by the heat off the engine sump ,in fact change all the transmission oils plus the engine oil and filter as this is the life of any car etc. As for fuel economy I get about 40ish out of my Terios so not to bad on the Dear juice, after all it is 4 wheel drive all the time and great off road or in snow just fit good M&S tyres and you should have no trouble with traction, Hope this helps a little Shugy.