The s line, if optioned with air suspension, gives you the sports air suspension which is 10mm lower than the standard air suspension (not available in US market). For used prices in the US, the q7 has depreciated far greater than comparable x5, which tend to be 8k more and often lack the difficult to find 3rd row option.
you've lost me with "if you need this for a school run". I'm no eco extremist, but the whole problem is today that somehow people actually live thinking exactly that. I need this for a school run. No you don't is a simple answer. The production of something like this is enormous. So the fact you run it on electricity means absolutely nothing, I'm sorry to say.
