Buying a plug-in hybrid or range extender
A plug-in only pays off if you charge it regularly: then short daily trips run on electricity, and the engine takes over on long journeys. Without charging you carry the extra weight of the battery around for nothing.
Compare the electric range with your daily distance and check the charging speed. Ask for the full final price including delivery, and whether company-car or tax rules in your country treat the model as a low-emission vehicle.