A PHEV is so much different than a mild hybrid system. My Volvo only has a 16 mile EV range but driving around town I was able to go 2300 miles on a single tank. (13 gal tank) So you'll notice a huge improvement in day to day driving around town, and not so much on the highway.I ordered my JLUR 4xe on 12/28. The dealer just called with a VIN and said I am slated for production on 2/20, a little later than they expected, but okay. I'd like to find out once someone takes delivery of one of these what the actual gas mileage is once the battery charge is used up. I have 2 Toyota Hybrids (not plug-in), they both churn out about 30% better mpg than the non-hybrids since they recharge the batteries during braking, downhill, and with excess engine power. Hope Jeep is able to do the same.