The alternative is to go through a more complex process of "coding" your car's settings directly with a PC running the eSYS software plugged into the OBDII port under the dashboard. If you are semi technical (or really technical) this is a free way to to not only enable the same "hold" mode but...
I tested this on level ground at about 70 degrees ambient temps with AC on low in Comfort mode.
Above 70 mph - Rex unable to fully power vehicle (battery range slowly dropped)
Between 64-67mph - Rex able to fully power vehicle
Below 64mph - REX generating surplus power (i.e. could put...
The i3 is clearly designed with ability to user-invoke the REX above SoC levels of 6.5%. That's the default behavior in Europe and a feature the European owners can use as often as they like. Likewise, the extra 0.5 gal fuel tank that Europeans enjoy is exactly the same tank we have in the...