The first thing to do is to find out CO2 ratings by checking either the car’s registration certificate (V5C), or look at the fuel economy label that should be displayed at the car showroom. 

Fuel economy labels make comparisons between cars easier and show estimated fuel costs for 12,000 miles as well as fuel efficiency ratings in bands progressing from A (green) – the best – to G (red). The more fuel-efficient the engine, the less vehicle tax that is payable.

When it comes to fuel economy, size matters and generally the smaller the engine, the more fuel-efficient it will be. It pays to be aware that similar sized cars and even different models of the same car may have different fuel efficiencies. Consult the fuel economy label.

The second aspect of an intelligent purchase is to know the pros and cons of using petrol or diesel as fuel. Petrol engines produce more CO2 and are less fuel-efficient. However, diesel emits air pollutants like nitrogen oxides and soot. Filters to cut down on these pollutants are available and some new cars already have them fitted.

Whether to use petrol or diesel depends on the type of travel. While petrol is a better choice for city use because of air quality issues, diesel is more fuel efficient and better for long distance driving.

Yes you guessed it the clue about the new features is in the name, the new G-Wiz features a Lithium-ion battery compared to the older models that used a lead acid battery. The new Lithium-ion battery will also bring some new beneficial gains to the G-Wiz driver which includes a range of 75 mile over the old 45 mile range, charging time is cut by 2 hours to a 6 hour charge, and the car will also be lighter than the older mode, and it will come with a 3 year warranty.

You might be persuaded to stick with the older model when we reveal the price which is £15,795 compared to the original G-Wiz which will only cost you £7995.

Owners of a G-wiz don’t fear though you can have the option of upgrading to the new Lithium-ion battery but no costs have been released yet.

Reva G-Wiz

1. Since a car’s engine is most inefficient when its cold you could save a large amount of fuel by walking short trips like into your local city centre as you could get the bus and save on ever rising parking fees.

2. By changing how you drive you can great aid your MPG to rise again, pressing the accelerator smoothly you’ll use a lot less fuel than just pushing it to the floor or been heavy footed.
3. Don’t over rev the engine. An obvious tip but keeping the engine under 3000RPM will really suit the car and stop it drinking petrol or diesel.

4. By keeping your eyes on the road, you’ll spot potential hazards earlier and this will save any harsh acceleration or braking.

5. Make your car lighter removing roof boxes will reduce drag on the car and make it lighter using less fuel. Carrying a big tool box in the boot for the past month well there’s a big weight in KG terms and will be like carrying an extra person in your car without your even realising.

6. Getting your car serviced, keeping your car well serviced and tyres inflated to manufacturers spec is a piece of mind for safety that nothing will fail on you but also will add to the chart of increasing MPG

7. If your stuck in a motorway jam or it appears that you wont be moving for 5 minutes then switch of your engine, your not going anywhere so it doesn’t need to be running.