This is an EV Grids calculation, not an observation: 160 km at roughly 165 Wh/km needs on the order of 26 kWh of road energy, and the planner keeps a 20% reserve in hand.
A compact (about 40 kWh usable) pack reaches about 195 km before reserve, so it can usually complete this leg without charging. A mid-size (about 50 kWh usable) pack reaches about 240 km before reserve, so it can usually complete this leg without charging. A long-range (about 70 kWh usable) pack reaches about 340 km before reserve, so it can usually complete this leg without charging.
At 160 km this is a single leg for most presets — the question is whether you start high enough, not where to stop.
Drive faster, run the air conditioning harder, or load the car and every number above moves the wrong way. Enter your own Wh/km on the planner and it will re-space the stops for ECR / NH32 accordingly.