What vehicles can save you money

I was just looking at the little G-Wiz, an electric car. "Petrol and diesel are now averaging more than £1 per litre / £4.54 per gallon. The cost of electricity to charge a G-Wiz overnight at the economy rate is as low as 40p (npower juice economy 7 night tariff 9.6kW hrs). So you can get 12.6 recharges for the same price as a gallon of fuel. 12.6 x 48 miles (maximum range of a G-Wiz) = 604 miles / gallon for the G-Wiz ac drive and 12.6 x 40 miles = 504 miles / gallon for the G-Wiz dc drive. For an average commute of 20 miles per day, this equates to approximately 4,000 miles taking in to account holidays. 4,000 miles in a G-Wiz will cost just over 1p per mile or £40 for the year, versus approximately 15p per mile (assuming 30 miles per gallon average) in an economical saloon car or more than £600 per year. Save £500 to £1,000 or more per year on fuel." http://www.goingreen.co.uk/store/content/benefits This little car, it is claimed, can pay for itself in a year and save you £27,000 over three years. The cost is from just £8,895 inc VAT and there's a £345 'on the road' charge. It is exempt from Road Tax and the London Congestion Charge and parking is cheaper in many places. Even with the cost of electricity about to rise, I think this would still be a very financially viable option. Making electricity still generates carbon dioxide, of course, but more effort is going into making electricity from non-carbon generating sources.