The thing that put the petrol car on the map was the invention of the self-starter.

Sales of new diesel cars fell by 38 per cent, while petrol car sales were down by 21 per cent.

You should change the oil in a petrol car once a year or every 7,500 miles.

However, only one respondent in seven said they thought they would be driving a petrol car in ten years' time.

That's less than 2p per mile on fuel, compared to roughly 14p per mile for a petrol car doing 35mpg.