For the last few months I've been doing near weekly drives from Slough to Bath and back with an overnight stop. Its 100 miles each way and because my Merc is off the road I've been using the 1970 Series. I've got used to it, my Series had been driven to Turkey and back by a previous owner so its up to long distances. I've got miltiary headsets rigged up so I can hear the radio, an overdrive and plenty to eat and drink. Cruise at 55/60 and I get out feeling OK. Find the hardest driving in a seris is twisty hilly lanes, no room to wander, and losts of gear changes. Bypasses with lots of roundabouts are hard work too, but the motorway is OK. I've had it full to the top with funiture and tools and its driven just fine, it hardly seems to feel the load. main worry is making sure I check the fluids really often inc the box and O/D. Before I bought the series I have now I test drove a 2 1/4 diesel LWB safari with non-servo brakes. It had come from a boat club in Surbiton and the guy selling told me 4 of them had driven it to the Costa del Sol for a holiday, there and back at 45mph flat out. Don't be soft!