You can try charging up at a lower elevation than where your trip started....
I usually get an indicated 118-136 mile range after charging up at work, but that's because work is at a lower elevation than home (-1200ft), and it seems that the range is calculated based on most recent driving (i.e. the last trip). After the same distance going back home, I get a 62-70 mile indicated range after charging up at home.
Today, I did 37 miles at 177 kWh/mi, for a total of about 6.55 kW to get to work. On the way back home (after recharging at work) I went 38 miles at 252 kWh/mi, for a total of about 9.55kW. So the round trip took a total of 16.1 kW to go 75 miles; if I didn't charge up at work I'd have about 3.9kW left, good for 16 miles if I kept going uphill or 22 miles if I headed back down to town, maybe 19 if terrain is flat, for a total range of 75+19=94 miles... pretty close to your 97 mile indicated range.
Best actual RT miles I've recorded on a single charge is 81 miles, with 6 miles to spare.
So... anyone out there break the 100mi indicated range or actual miles traveled on a single charge, after taking a trip that resulted in a zero elevation gain/loss? If so, please teach us! When trying to be zen, I'm already going slow uphill (hide behind a slow big rig), regenerating as much as possible downhill, braking at 98-100% regen, slowing down on turns to minimize using the tires to convert energy to heat, limiting speed to speed limit or lower, minimizing climate control system energy draw... what else can be done?