I need to find a replacement for my BMW 225XE lease. I've plumped on the Leaf, but I need help. I have a once or twice a week return journey of 120 miles, the rest of the time is spent pottering around locally. The longer journeys are 90% along the A12 and A120 in Essex, which is generally flat and 10% town and country lanes. There are frequent accident delays on the road. I really want to avoid charging on the trip. I had a Mercedes B250e and have developed a phobia of chargers, particularly the Ecotricity one by the bins at the back of the Subway takeaway on the A12. The difference in lease costs between the 40 and 62 is around £100. I obviously would rather save £2400 over the two year lease by going for the 40. My understanding is the difference in drive between the 40 and 62 is minimal. Assuming zero celsius, with say 20 minutes of traffic delays and some rain is 120 miles possible? What speed would I need to travel at with the heating set to 19 degrees? I'd like to use the autopilot and adaptive cruise control, do they reduce range? Other than range and front wheelspin is there any other difference / advantage the 62 has over the 40? I understand the 62 no longer charges at 100 kWh.