You need some way of produce energy by reacting with oxygen in the air – this needs a fuel which burns in the oxygen. That could be hydrogen, petrol or diesel, for example.
I was shocked when I found that link about the fresh air car. Rather cool though 🙂 Thanks for the question Kieran, I learnt something new today 🙂
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Mike commented on :
I was shocked when I found that link about the fresh air car. Rather cool though 🙂 Thanks for the question Kieran, I learnt something new today 🙂