The engine can output 130kw constantly (more at peak). Heavy towing on the highway is typically around 1mi/kWh, but can get as low as 0.5mi/kwh when going uphill. 70mph at 0.5mi/kwh for an hour uses 140kWh. The engine can output 130kWh in that time frame (more if running at peak, which it would be in this scenario.) The engine along with the battery buffer can easily handle even the worst case scenario and that’s partially why they use the V6 engine.
The engine can output 130kw constantly (more at peak). Heavy towing on the highway is typically around 1mi/kWh, but can get as low as 0.5mi/kwh when going uphill. 70mph at 0.5mi/kwh for an hour uses 140kWh. The engine can output 130kWh in that time frame (more if running at peak, which it would be in this scenario.) The engine along with the battery buffer can easily handle even the worst case scenario and that’s partially why they use the V6 engine.