The Greenest Cars on Earth ? …so far ?

Hybrid Cars
The most common hybrids available on the market today use a combination both petrol combustion engines and electric motors.

What are ‘Hybrid’ cars?
In simple terms, these are cars that use both electric motors and petrol combustion engines. The petrol engine charges the battery when using regenerative braking and during higher speeds. The battery operates the car at low speeds or in traffic, whilst the petrol engine cuts-in at higher speeds, therefore allowing the car to operate efficiently.

The combination of the petrol combustion engine and battery power tend to produce less CO2 and pollution. Hardly any gases are released into the atmosphere when the electric motor is running. Therefore, hybrid cars are often exempt from the London congestion charge, as well as qualifying for cheaper car tax.

Top Hybrid Cars:

Toyota Prius

The Toyota Prius is powered by a 1.5 litre petrol engine providing high speed efficiency combined with the low speed torque of the Hybrid Synergy Drive system. As a result, this car has very impressive economony of about 65 mpg. The carbon dioxide emissions are low at 104g/km which means that the company car tax is low as well as being exempt from the London congestion charge.
CO2 emissions: 104g/km
MPG Combined: 65.7
Engine: 1497cc Petrol/Electric Motor
Transmission: 4 Speed Auto
BHP/Torque: 76/115 NM
Kerb Weight: 1300 kg
NCAP: 5-Star
Top Speed: 106 MPH
0-62 MPH: 10.9 secs
Insurance Group: 8
Warranty: 96months/100,000miles on Hybrid system

Honda Civic IMA

The hybrid system is covered by a 8 year warranty from Honda. On a full tank of petrol, you can achieve a range of about 700 miles…..which combined with its 109g/km CO2 emissions, and low insurance, makes this car a real bargain long term. The car has the efficiency of a 1.0 litre engine, the power of a 1.8 litre and yet is only a 1.3 litre engine.
CO2 emissions: 109g/km
MPG Combined: 61.4
Engine: 1339cc Petrol/Electric Motor
Transmission: 7 speed CVT Auto
BHP/Torque: 113/225 NM
Kerb Weight: 1297 kg
Top Speed: 115 MPH
0-62 MPH: 12.1 secs
Insurance Group: 7
Warranty: 36months/90,000miles

Lexus RX-400h

With an impressive 34.9mpg combined and CO2 emissions of 192g/km, when compared to other for luxury SUV these are probably the best in the class. For those of you that are skeptical about the reliability of this technology – the hybrid system and battery come with a five year peace of mind warranty.
CO2 emissions: 192g/km
MPG Combined: 34.9
Engine: 3500cc Petrol/Electric Motor
Transmission: E-CVT Semi-Auto
BHP: 269bhp
Kerb Weight: 2000 kg
Top Speed: 124 MPH
0-62 MPH: 7.6 secs
Insurance Group: 16
Warranty: 36months/60,000miles

Lexus GS-450h

This car has the economy of a 4 cylinder 2.0 petrol engine, yet has the same performance of a V8….It carries a car tax levy of 21%, and is currently exempt from the London congestion charge.
CO2 emissions: 186g/km
MPG Combined: 35.9
Engine: 3500cc Petrol/Electric Motor
Transmission: E-CVT Semi-Auto
BHP/Torque: 340/368 NM
Kerb Weight: 2355 kg
Top Speed: 155 MPH
0-62 MPH: 5.9 secs
Insurance Group: 17-18
Warranty: 36months/60,000miles

Toyota Hybrid X

The original Toyota Prius was released back in 2003. Now, four years on, Toyota unveiled the all new Toyota Hybrid X at the 2007 International Motor Show in Geneva. Although this is a concept car at this stage, it could possibly become the new Prius.

Electric Cars:
These cars are powered by batteries which are charged from external power sources. On full charge, electric cars have a range of between 30 miles and 100 miles. They produce no emissions and can be charged on renewable energy.
As with Hybrid cars, electric cars are exempt fom the London congestion charge. Another benefit for electric car owners in London, is that these cars qualify for parking concessions and charge points from some London councils.

London Council Concessions & Discounts:
Barnet:Residents Parking concessions
Camden: 50% parking discount plus Charge points at Bloomsbury Square Car Park + Resident Parking concessions
City of London: Free parking at 7 city car parks + all pay and display bays. (6 charge points)
Croydon: 50% discount in council car parks with season ticket
Hackney: Free business + residents parking permits
Haringey: Free business + residents parking permits
Harrow: Free residents parking permit
Islington: Free residents parking permit
Kingston: Seven Kings Car Park (3 charging points)
Merton: 50% discount for residents parking permits
Redbridge: Free residents parking + free parking and at 20 car parks
Richmond upon Thames: 50% discount for resident parking permit
Southwark: 75% discount for business & residents parking permit
Sutton: Free parking in council pay & display bays. Car parks and free resident permits. Gibson Road Car Park (Charge point)
Tower Hamlets: 30% discount for business + residents parking permits
Wandsworth: Discount business + residents parking permits
Westminster: Free parking at pay & display car parks. Discount parking at Masterpark Car parks. Discount resident parking. Masterpark car parks (48 charge points)


The G-Wiz made by the Reva Electric Car Company is one of the greenest cars in the UK.
Compared to petrol and diesel cars, the G-Wiz has no exhaust emissions, which would save well over one tonne of CO2 per year. For the resident, the car is exempt from road tax and the London congestion charge. For businesses, there is a 100% tax write down, as well as a company car tax of only 9%. The running cost works out at about 1p a mile.
Statistics – AC / DC
CO2 emissions: Zero
MPG: 600mpg equivalent
Engine: Maintenance free AC motor
/ Carbon brush DC motor
Torque: 52Nm/72Nm
Transmission: Automatic
Kerb Weight: 665 kg
Top Speed: 45mph/40mph
0-62 MPH: n/a
Range: 48 miles/40 miles
Charge time: 2.5 to 8hrs
Insurance Group: 1
Warranty: 24 months

Sakura Maranello4

This two seater electric car has a top speed of 30mph and a range of about 45 miles – perfectly suited for inner city driving. The car is exempt from road tax and the London congestion charge, as well as discounted parking in some London councils.
CO2 emissions: Zero
Engine: DC Electric Motor
Power: 4.0Kw
Transmission: Automatic
Top Speed: 30mph
0-62 MPH: n/a
Range: 45 miles
Warranty: 36months/Unlimited
battery-24 month

NICE Mega City

The ‘NICE’ stands for ‘No Internal Combustion Engine’, which means zero emissions.
The car is made from a tough aluminium safety structure with a 100% recyclable thermo-plastic outer shell. The car has a range of about 50 miles, which for the average school run makes of about 5 miles, makes for a recharge about every fortnight. The NICE Mega City can be charged from your home mains socket as well as from public charging locations, which are on the increase.
CO2 emissions: Zero
MPG: 1.5p/mile
Engine: Electric DC
Power: 4KW
Batteries: 8 AGM Lead
Transmission: Automatic
Top Speed: 40mph
0-62 MPH: n/a
Range: 50miles
Charge time: 8hrs
Warranty: 24months

Micro-Vett Ydea

The Micro-Vett Ydea has the one of the best distance ranges available today for an electric car. It can achieve about 100 miles on a singe charge.
CO2 emissions: Zero
Transmission: Automatic
Top Speed: 40 mph
Power: 16 KWh
Range: 105 miles
Charge time: 8 hrs
Warranty: 12 months


The Elettrica electric car has beautiful Italian styling, emits no CO2 and has a range of 65 miles on a single charge. Similar to the Smart car, there is ample room for two adults with luggage.
CO2 emissions: Zero
Transmission: Automatic
Top Speed: 45 mph
0-62 MPH: n/a
Range: 65 miles
Charge time: 5 hrs
Warranty: 12 months

Biofuel Cars:

Compared to standard petrol cars, bio-fuel cars are more environmentally friendly. They are produced from renewable energy sources such as rapeseed or soybean oil which are plant oils. They can also be made from animal fats, or even recycled restaurant oil. These oils are mixed with diesel to improve engine efficiency. The range of biofuels include Bio-ethanol, CNG (Compressed Natural Gas) and Bio-diesel. Biofuels tend to be more environmentally friendly. The CO2 is offset more by using plants to create the fuel.

By using organic matter such as plants to produce biofuel, the CO2 is offset more therefore using it does not result in a icrease of CO2 into the atmosphere.

AFV: Alternative Fuel Vehicle
CNG: Compressed Natural Gas
FFV: Flexible Fuel Vehicle (Ford)
GTMV: Gasoline Tolerant Methanol Vehicle (Chrysler)
LPG: Liquefied Petroleum Gas
LNG: Liquefied Natural Gas
E85: Mixture of 85% methanol alcohol & 15% gasoline
NGV: Natural Gas Vehicle
VFV: Variable Fuel Vehicle (GM)

Ford Focus FFV

Ford’s “Flex Fuel Vehicle” (FFV), mainly uses a mixture of 85% methanol and 15% gasoline called M85. It can also use normal fuel up to 85% ethanol or methanol alcohol. Because the biofuel is made from plants, the plant crops during production can absorb the CO2 before harvesting, therefore offsetting about 70% of the car’s carbon emissions during it’s life.
CO2 emissions: 169g/km
MPG Combined: 40.4
Engine: 1798cc Flexi Fuel
Transmission: 5 Speed Man
BHP/Torque: 125/165 NM
Kerb Weight: 1333 kg
Top Speed: 123 MPH
0-62 MPH: 10.3 secs
Insurance Group: 7
Warranty: 36 months/60,000

Saab 9-5 BioPower

The Saab 9-5 BioPower can use both bioethanol as well as normal petrol without any adjustments needed. One advantage for using E85 is it produces more torque due to the higher octane rating. This gives the car more power and more of a sportier feel. For example, if you drive 0 to 60 mph in 9.8 seconds using standard fuel, by using the bioethanol fuel would increase the torque therefore the same drive could be done in 8.5 seconds.
CO2 emissions: 204g/km
MPG Combined: 32.8
Engine: 1985cc Bio Fuel
Transmission: 5 Speed Manual/Auto
BHP/Torque: 150/240 NM
Kerb Weight: 1500 kg
Top Speed: 134 MPH
0-62 MPH: 9 secs
Insurance Group: 14
Warranty: 3 years/60,000miles

Volvo S60 CNG + Volvo S60 CNG

Both these Volvo models use Compressed Natural Gas (CNG), which is a fossil fuel. CO2 emissions are lower when compared to standard petrol or diesel. They can both run on either CNG or petrol. Both cars are currently exempt from the London congestion charge.

Volvo S60 CNG Statistics
CO2 emissions: 159g/km
MPG Combined: 31.7
Engine: 2435cc Bio Fuel
Trans: 5 Speed Man/Auto
BHP/Torque: 140/192 NM
Kerb Weight: 1514 kg
Top Speed: 130 MPH
0-62 MPH: 10.7 secs
Insurance Group: 14
Warranty: 36 months/60,000

Volvo V70 CNG Statistics
CO2 emissions: 169g/km
MPG Combined: 30.1
Engine: 2435cc CNG
Transmission: 5 Speed Man/Auto
BHP/Torque: 140/192 NM
Kerb Weight: 1563 kg
Top Speed: 127 MPH
0-62 MPH: 11.0 secs
Insurance Group: 13
Warranty: 36months/60,000m


About LPG
LPG (Liquefied Petroleum Gas) is a mixture of propane and butane. The mixture ratios vary depending on the season, for example, in summer, more butane is used. But in winter the mix is more Propane (60%) and less Butane (40%). Liquefied Petroleum Gas (LPG) is manufactured as a by-product during the refining of crude oil.
The main advantages of using LPG is the cost, and the environmental benefits as it produces less CO2 than normal petrol cars and diesel cars as well as produces less Nitric Oxides.
The duty on the fuel is less therefore LPG works out at about 50% cheaper per litre than normal petrol. The cleaner LPG vehicles can be exempt from the daily London Congestion Charge. Also they can qualify for cheaper road tax. Many local councils in the UK are starting to offer discounted car-parking in towns or city centre car parks for LPG converted cars. Almost any car can be converted to use LPG.

Future Green Cars:

BMW Hydrogen 7

Mercedes-Benz A-Class F-Cell

Tesla Roadster Electric Vehicle

ZAP-X Lotus Electric Car

Microcar ZENN

Porsche Cayenne Hybrid

Connaught Type-D H

Mitsubishi Eclipse Concept-E

Citroen C-Metisse Concept

Toyota FT-HS

Toyota Camry Hybrid

Ford Edge Hyseries Hybrid

Volkswagen Tiguan

Lexus LS 600h

Lexus LF-A

Saab Aero X


Volvo 3CC

Hummer H3 E85 Flexfuel

Peugeot 207 Epure

Lotus Exige 265E

Smart EV

Subaru B5-TPH

Venturi Fetish

Lotus Obvio 828

Subaru R1e


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  1. Oil anemia runs deep. Zero-emissions vehicles(ZEVs)are the cleanest by definition. Our 100% battery-electric, solar-powered cars are zero in, zero out, besting hydrogen, biofuels, and obviously the internal combustion engine.

  2. Ive been running my transit on vegetable oil for over 60k with no changes to the engine. Need to bosh down with 10% methanol or standard diesel to increase viscosity.
    This is a 12 year old transit – why no developments in this department since then?

  3. Joseph Mercado on

    I’m sure tired of dreaming and being teased with all these cool looking electric vehicles, none of which are yet available in the United States for sale to the Public. Will someone please make a move and be first to offer an electric vehicle for under $30,000 dollars?

  4. The carbon footprint of any vehicle contains the production and scapping costs,as well as its lifetime fuel costs,spares etc, …surely the way to make greener cars is to build them to last as long as posible , motor manufacturersproduce a car for a set run then obselete it, forcing the old models into decline by non availability of spares. A policy of ongoing suport , modular design and upgradability built in as new technologies become available would be greener than the scrap it ideology that is pushed on us by the car manufacturers,also trimming unnessesaries like air con, power steering and ,weighty trim and would cut running costs .The biggest ever own goal scored by the environmentalists was the catalytic converter, it instantly costs you 15%extra in fuel and lost mpg/power, while most fuel injection systems can now self tune and produce lower emisions without the catalyst.My own car is a pre catalyst ford escort,it is reliable and still does 35 to 40 mpg urban cycle, which combined with the carbon saving of not scrapping it makes it as green as many modern cars ans its still far greener than any of the 4x4s that terrorize our roads today

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  14. William Wilgus on

    It’s been shown that when considering the `dust-to-dust’ (raw materials to scrap) cycle of an auto, Hybrids are less environmentally friendly than standard autos. When you consider that Ethanol provides less power per unit volume than gasoline, it provides no ecological savings because of the power needed to produce it. The same applies to Hydrogen, but even more so. The only thing that will help ecologically—at least for the short term—is more fuel-efficient autos: better aerodynamics, better power-plant / drive train efficiency, and lower weight. One example is Audi’s A-2: 79 m.p.g. combined cycle driving.

  15. I 4 1, I’m very glad to see car manufacturers are developing technologies to reduce de global warming!!!!

    Was about TIME!!!!
    THAT’S ALL!!!