Sure, but when you know your average price/kW and /gallon, one can easily calculate the average price/100 km and therefore directly compare to diesel, gasoline or LPG consumption.
In my case price/km (or mile) was not the main rationale to go for a PHEV. I was mainly aiming at making my daily urban commute as green as possible, while still avoiding the range-anxiety I would probably have with a full-electric when going on longer trips.
On the plus side - I can charge at a ridiculous price/kW, which makes my daily average consumption of ~20 kWh/100 km (in EV mode) to be equivalent to less than the price of 3 l/100 km (gasoline). Not too bad I think.
In my case price/km (or mile) was not the main rationale to go for a PHEV. I was mainly aiming at making my daily urban commute as green as possible, while still avoiding the range-anxiety I would probably have with a full-electric when going on longer trips.
On the plus side - I can charge at a ridiculous price/kW, which makes my daily average consumption of ~20 kWh/100 km (in EV mode) to be equivalent to less than the price of 3 l/100 km (gasoline). Not too bad I think.