The dealer wasn’t really lying just unclear. The car is not designed to stay fully electric until the battery hits zero because the ICE engine is only 150hp. Instead it’s optimized to be a hybrid that’s reserving battery power for acceleration, which lets the engine stay in more efficient and lower RPM ranges for much longer. You can press a button every time you get in to drain the battery but that’s really not the intended use.

Anyway, the subsidy is really designed to setup the used car pipeline. In 20 years someone with significantly less money is probably going to be driving your car and they aren’t going to be thrilled with having ~14mph.