Andrew- thanks for your comments and yes, am really delighted.
With regard to the ground clearance, there was a useful few posts on ground clearance further up this thread which enabled me to have potential solutions if +4 or 4/4 did not have sufficient ground clearance to get up our drive (many cars bottom the front valance or low cross-members on our drive entrance).
In the end, we tried both up our drive and luckily found both will clear - but +4 has to be driven slow with not a lot in it - but it can be done. Maybe Keith (Burgandymog) or Peter (Gambalunga) ideas of 185/70/15 or 195/65 tyres is useful to you? We had this 'in reserve' in case a +4 did scrape - but, in the end, didn't need it. Our +4 is standard tyres only (195/60/15) - just checked. That's only about the 40th time I've found an excuse to go into the garage since Friday !