Plug-in hybrid vehicles also capture energy from regenerative breaking but can also be charged separately via an external electrical power source. Here the normal diesel or gasoline engine remains the primary source of power, however it is supplemented by a larger battery that can independently enable the car to be driven in electric mode only, achieving a range of around 30 km. In a plug-in hybrid, the diesel or gasoline engine is the default powertrain once the battery power is depleted.
What this means for platinum
Diesel could well prove to be an important component of automakers’ CO₂ reduction strategies and platinum remains the primary metal in diesel autocatalysis.
Mild hybrid diesel vehicles produce far less CO₂ than equivalent gasoline or even diesel vehicles, and growth in sales of diesel hybrid models, which are already available, will assist automakers in managing their potential exposure to fines by reducing overall fleet CO₂ emissions. Increased sales of diesel cars (mild hybrid and plug-in mild hybrid) are positive for platinum demand.