A side effect of the corona pandemic: Your own car is more attractive than ever. With the temporary reduction in VAT from July onwards, buying a car will probably be even cheaper - if the manufacturers pass the benefit on to customers. Most still do not buy an e-car, but many still want an environmentally friendly vehicle, but with the variety of emissions standards, CO2 data, fuel and drive types, it is not so easy to make a decision. We answer the central questions about environmentally friendly car buying.