The French Offer a +20% battery capacity tune in Quebec on 2014 Volts
Sadly +20 mod is a 2014 only thing and French Canadian,
My hope is they get the "mod" to a simple tune and bundle the +20 with the 50mpg tune so the price isn't as steep, I'm waiting and watching developments on both fronts until I figure both are mature enough to justify.
I'm close and maybe a grand on mods is worth it since I plan on keeping the car but I would prefer the +20 to get integrated into hp tuners so it's easily self removed
And yes 68miles is nothing above 70 starts getting hard, easiest to hypermile when it's over 85f
Ah well