Am I correct in saying that when you have used up the 20 odd electric miles, that you are left with a 148 bhp petrol engine to propel you around until you recharge?
Elliot the Superb will do nearer the 30 mark on pure electric mode only, if you leave the settings alone it will do nearer 100 miles in combination with the ICE unit plus any regenerative input.
brydo should be along later he is much better at explaining hybrid systems.
Unfortunately I have suffered a brain injury and occasionally I get confused and often say the wrong thing.