General example use case for a PHEV with say a 40km Electric range, would be a person who has a 30km round trip commute (or 30km each way way if they can charge at both ends), that they do 5 days a week, 48 weeks a year, but the owner also uses the car for a long trip that is poorly served by fast charging twice a year, which makes a pure EV unattractive.
In which case you're probably still better off buying an EV and renting an ICE for that long trip. Of which there can't be very many these days and will become increasingly rarer.
Perhaps it was a week example to use, given that NZ's charging network is getting pretty comprehensive (assuming both a modern 350km+ range EV, and willingness to wait around at 50kW chargers).
Unless ones one is driving a low range EV (either an old leaf like mine, or a modern EV towing a big trailer), there are now few poorly served fast charging route's.
The rental car situation can work well in some situations where:
- Travel is planned well in advance
- Often travel on routes well served by flight routes - I.e. fly to the other island and rent a car their, saving a lot of time and ferry costs compared to taking your own car.
- Travel is generally outside peak periods
- Limited needs regarding type of vehicle (i.e. Ok with a corolla hatch).
- Close to rental car locations
However it is problematic in other situations:
- Emergency / last minute travel (many rental car offices close at night)
- Specific vehicle needs - i.e. 7 seater, towbar can greatly add to the cost of a rental car. Other things like a roof rack (other than for snow sports) / roof box / bike rack are basically not catered for by the rental industry, but a holiday staple for many families
- Off road capability & insurance (generally off road is not insured on rental cars)
- Located far from rental offices
- Peak time rental cars can be really expensive. If one lived in queenstown, and wanted to rent the biggest SUV apex had for the July school holiday (2 weeks), and two weeks at christmas, the fortuner would cost $5,405.4 with maximum excess reduction cover... Well more than most people spend on fuel & RUC in a year.