Diesel, Gasoline, or biodiesel car?

Energy density says with diesel at 35.8 megajoules per liter and gasoline at 34.2, you should go a bit further with diesel.
Energy density Wikipedia
Diesel, esp. from petro sources, tends to create more hydrocarbon pollutants and particulates per distance traveled, esp on short hops where the engine doesn't warm up to it's higher efficiency range. Diesels like running on long trips.

Diesel engines tend to be noisier. Diesel could have issues with fuel gelling in very cold weather if it has insufficient winter additives, and sometimes even that isn't enough for a frigid weather startup..

Gasoline is more refined than diesel and likely has a bigger production environmental footprint than diesel, although diesel has a bigger combustion environmental footprint. Biodiesel can be better depending on its source.

Usually you do not have the choice of diesel vs. gasoline for the same model of car, so there will be other factors to consider besides fuel type. Best wishes shopping for your next vehicle.

Bio Diesel is Great... It can be made from Many Organic Products INCLUDING used Cooking Oils. I had a Hilux Diesel I ran on it for a while.
To get an Accurate number of Vehicles running on ONLY Used Cooking Oil is impossible due to the Fact that there is no way of Knowing how many get oil and put it into the fuel tank right away... after being Filtered.
I know 2 People who collect used Cooking Oils and Filter it three or 4 times before putting it into the Fuel Tank... Thus there is no way to be able to add these people to the list
You could probably get rough Figures... not sure where....
I assume this is for some type of exam or similar??? Sorry I can't give a better answer but as you see by what I did answer... It is Impossible to be accurate

Steam or electric are probably cheapest TO RUN... But most expensive to buy.... Butane would probably be next... It is actually a Mixture of Butane, Methane and a few others... In Australia it is the same as we use for the BBQ..... This would probably be next.... but unless the car is Factory converted,... then you will probably need some Petrol/Gasoline just to start .. You use maybe 2 or 3 Cupfuls each time so you don't use Much... It is also a Good backup if you run out of LPG....... The rest... it depends on th e Government and Fuel Companies which one is cheapest but what it SHOULD be id From cheapest up... Diesel, Unleaded, Premium Unleaded
Forget the rest... They would be cheap to run but the conversion would be so expensive it would be not worth the effort

In my opinion, the use of fossil fuel sources of energy will decrease in the near future. Meanwhile, other forms of clean energy will be cheaper and more available, like: solar, wind and hydroelectric energy.