Hybrid cars

There have been a lot of hybrid cars in the world, most recently the Milan Mercury have came out, but how exactly does it work? To start off, I shall show you a graph.

To start off, there is a many type of power sources for hybrid cars:
# On-board or out-board rechargeable energy storage system (RESS)
# Petrol
# Diesel
# Hydrogen
# Compressed air
# Liquid nitrogen
# Human powered e.g. pedaling or rowing
# Wind
# Electricity
# Compressed or liquefied natural gas
# Solar
# Waste heat from internal combustion engine.
# Coal, wood or other solid combustibles
# Electromagnetic fields, Radio waves
The most common type of combinations are actually petrol-electricity, diesel electricity and the most fuel efficient diesel-electric. However, most cars does not use equal amounts of each energy at the same time, as power sources such as solar and wind are not always guranteed and electricity will run out quite fast and putting a lot of battery will affect the aerodynamics of the car quite badly. So, most hybrid cars use 80% fuel(petrol and diesel) and 20% others.
The main reason why hybrid cars are becoming more and more popular is that its fuel consumption is genuinely low. For example, a normal Honda Civic goes 24 miles to a gallon when traveling at 96km/h. However, traveling at the same speed, the hybrid Civic can hit 45mpg! So, by spending $5000 more to buy a hybrid car, you halved the amount you pay for fuel.
Hybrid cars also genuinely pollutes less because the 2 power sources share the job and thus produce less emmusions. This is because if you have a diesel-solar car, in which diesel pollutes very much, the solar cell share the job of running the car. So the diesel engine will be valving less and causing less pollution.
However, I think that hybrid is not the way forward. They are being used in a incorrect way. Because in the UK, cars are taxed by how much they pollute the country. So, a car firm built a petrol-electric car that only have enough electricity to run for a mere 6 miles and then its petrol all the way. This is just a way to sell your car. Mind you, 6 mile is basically 9.6km, which is from Tuas Second Link to just after Boon Lay, which is not even enough to get you to the city if you live in Marine Parade. So, don't buy a scam hybrid car, get yourself a normal road car.