Might be a while - we have a short drive up a very steep hill, doesn’t do much else apart from that. All I can tell you is it uses 5% of battery to do that round trip of 1k - using that logic range would be 20k’s, but it would obviously be using more to pull a family and shopping up the hill than one person going down the hill, even with regen.
I’ve got a 3k flat-ish circuit where we live, might try that.
Just fitted the Allion battery gauge, so can finally see the proper state of batt charge and amps being pulled.