The Green Piece Column. Tuesday 23 February 2010

Steeped in tradition, having been established in 1905 and now set for its 80^th edition, the Geneva International Motor Show has always been one of the highlights of the automotive calendar.

Regarded as a level playing field for the world’s car manufacturers as Switzerland lacks an automotive industry of its own, exotic supercars usually steal the spotlight at the event but this year, after turbulent times for the industry, the focus is on green cars and the future of the business. With that in mind here we look at the top 10 most exciting green cars expected to be unveiled at the show.

1. BMW Concept ActiveE

Making its European debut in Geneva, the BMW Concept ActiveE is a fully electric drive vehicle based on the BMW 1 Series (see article). It features a specially developed motor that delivers 125kW/170hp with a maximum torque of 250Nm.

It is capable of accelerating from 0-60mph in 8.5 seconds and has a range of 100 miles on a single charge.

2. New 2011 Ford Focus

Already unveiled to North American audiences in Detroit in January, the 2011 Ford Focus will make its European debut in Geneva with fuel consumption savings of 10-20 per cent compared to outgoing models (see article).

The new Focus is expected to include the next generation Focus ECOnetic technologies including automatic stop-start, smart regenerative charging and low tension front end accessory drive to bring emissions down to a targeted 99g/km with fuel economy at 74.2mpg.

3. Citroen DS High Rider

A brand new hybrid concept, the Citroen DS High Rider hopes to capitalise on the higher efficiency of a diesel combined with an electric motor and is capable of operating by diesel or electric power separately dependent on the conditions (see article).

Details of fuel economy and emissions of this exciting prototype are remaining under wraps until the Geneva Motor Show opens its doors.

4. Peugeot SR1

A new concept car by Peugeot, the SR1 uses the Hybrid 4 technology that is expected to be launched in the Peugeot 3008 in 2011. A 1.6litre THP petrol engine is combined with a rear electric motor that develops 70kW and with the two powertrains operating simultaneously the SR1 can deliver power as high as 230kW.

Its combined fuel cycle performance is 58mpg, with CO2 emissions at 119g/km.

5. New 2011 Audi A1

A new super-mini from the German carmaker, the Audi A1 boasts CO2 emission figures as low as 102g/km according to preliminary figures (see article).

 

Though Audi is shrinking in size to meet green car market demand, the A1 retains its signature sleek, streamlined look and can develop 160Nm of peak torque that enables it to race from 0-62mph in 12.1 seconds with a top speed of 111mph and fuel efficiency in the region of 55.4mpg.

6. New 2011 Bentley Continental SuperSports Convertible

As part of Bentley’s ongoing commitment to biofuels, the manufacturer will debut its flex-fuel capable Continental SuperSports Convertible at the event (see article).

With flex-fuel in full use, CO2 emissions fall by as much as 70 per cent and yet the vehicle still produces remarkable sports car figures, racing from 0-60mph in 3.9seconds and with a top speed of 202mph.

7. New 2010 Volkswagen Polo BlueMotion

Simply one of the greenest cars to date, the new Volkswagen Polo BlueMotion will be the second cleanest conventionally fuelled diesel on the market (behind the Smart ForTwo) with emissions at just 91g/km and fuel efficiency as high as 80.7mpg (see article).

This remarkable small car has certainly stood the test of time but with a new advanced 1.2litre TDI engine, automatic stop-start technology and regenerative braking, it takes the carmaker to an all-time high in fuel efficiency.

8. Vauxhall/Opel Flextreme

The Vauxhall/Opel Flextreme is a diesel plug-in hybrid car that can travel 34miles on its lithium-ion batteries before a small diesel engine starts to charge the batteries (see article). This range-extended concept is a rebadged version of the Saturn Flextreme first introduced in 2008 and is expected to emit 40g/km of CO2 or less based on European test procedures for range extended vehicles.

Its total range is expected to be more than 300miles with average fuel consumption at 174mpg.

9. “5 by Peugeot”

Another Peugeot debutant at the event will be the “5 by Peugeot”, a new concept car that expresses the carmaker’s desire to establish itself in the luxury sector (see article).

With Hybrid 4 technology it has an overall maximum power of 200bhp with super low fuel consumption at 74.3mpg. Its CO2 emissions, although not yet confirmed, are expected to be a meagre 99g/km placing this car right at the top of its sector.

10. New 2011 Lotus Elise

With all the hallmarks of a super car, the new Lotus Elise certainly isn’t the average green car, but thanks to a number of technological advances it manages to combine performance with efficiency (see article).

Thanks to a new 1.6litre engine that is 200cc smaller than the previous Elise model but still produces similar power at 160Nm at 4,400rpm, it has the lowest CO2 output of a petrol sports car in the world with emissions at less than 155g/km of CO2 and fuel economy at 38mpg. Nevertheless it still manages to race from 0-60mph in 6.0seconds with a top speed of 124mph.

The Geneva Motor Show opens to the Press on March 2 and to the public on March 4. We’ll bring you all the latest information from the event in our news section.

Faye Sunderland

Now this is a green car! Just a day after we announced that Lotus would be debuting a new, greener Elise model at the Geneva Motor Show (see article), now it is the turn of Bentley to offer a potentially show-stealing model of its own with a distinctly green theme.

The Bentley Continental Supersports Convertible (which we originally told you about here) offers the same 621bhp, twin-turbocharged W12 engine as the coupe version that was introduced in 2009 and is the fastest and most powerful drop-top the company has ever produced. Yet, remarkably, it can run on either petrol and E85 bioethanol, or even a combination of both.

Bentley has made an ongoing commitment to make its vehicles biofuel capable by 2012. E85 biofuel has a high octane rating of 105 but a lower energy content compared to petrol and requires a 30 per cent increase in the engine fuel flow rate. This meant that a complete review of the fuel system was required to identify, and replace as appropriate, any components deemed unsuitable.

A fuel quality sensor is used to detect the blend ratio of the fuel in real time and send a signal to the engine control unit. This keeps performance parameters consistent and with the flexfuel technology in full use, carbon dioxide (CO2) emissions can be reduced by as much as 70 per cent.

All of these environmental improvements do not mean there has been a sacrifice in performance, however. The six litre W12 engine produces 621bhp at 6,000rpm and 800Nm of torque at 2,000-4,500rpm. The Continental Supersports Convertible can race from 0-60mph in just 3.9seconds, and boasts an impressive top speed of 202mph making it the fastest four-seat convertible in the world.

It is fair to say that we don’t often mention premium British carmaker Bentley on the news pages of the website, and while their full range of cars are powered by hugely powerful engines the company is looking into ways of improve their environmental performance.

Their forthcoming supercar the Bentley Continental Supersports has at its heart the company’s first dual fuel engine, capable of running on petrol but also, and importantly, on bioethanol (E85).

The company has confirmed that biofuels will play an increasingly important part for future models, as the company looks into ways of reducing CO2 emissions across its range by 15% by 2012; part of this will be through the introduction of 100% compatibility with renewable fuels, and an all new powertrain which improves fuel economy by 40%.

The first car to fully benefit from this new philosophy is the Supersports, which is actually the most powerful Bentley ever produced, with some truly eye-watering performance figures, such as 0-60mph in 3.7 seconds, and a top speed of 204mph! Yet its 6.0l engine is capable of running on E85 bioethanol, as well as petrol, which means that it offers a net CO2 reduction of between 50-80% on a well-to-wheel basis.

While it is still a long way off that Bentley will feature in our ‘Most Economical Cars’ section on the site, the Bentley Continental Supersports official CO2 figure is a weighty 388g/km, it is good news that the premium sector of the industry is making strides to improve their green credentials.

Bentley now guarantees 85 % recyclability (or 95 % recoverability) of materials for all its current Continental models as well as providing environmental friendly recycling or recovery at the end of the car’s life.

This recycling achievement has now received official recognition from the German Motor Transport Authority (KBA). In a ceremony in Berlin, KBA’s President Ekhard Zinke presented the official European-wide certificates to Dr. Arno Homburg, head of Whole Vehicle Development at Bentley Motors.

“Our environment policy is based on sustainable principles and we take a holistic view of the whole process. At the design stage we consider the environmental impact of all components over the entire life of the car. This is despite the fact that over 70% of all Bentleys ever produced are still in existence – our cars tend to end up as collectors’ items rather than scrap. This is part of our responsibility as a car maker to contribute to environmental improvements, as demonstrated by this certification,” commented Dr. Homburg.

The recycling certificate is part of a comprehensive environmental strategy that the British carmaker is following. Apart from improving the environmental output of manufacturing, the strategy sets out a timetable for the introduction of new environmentally friendly technologies into the cars themselves. The company has already launched its first serial model – the Bentley Continental Supersports, unveiled at the Geneva Motor Show, which can be powered by either gasoline or ethanol, a fuel which can markedly reduce carbon emissions on a well-to-wheel basis. As a pioneer in the luxury market, Bentley is paving the way for a customer shift towards alternative fuels. By 2012, all Bentley models will be available with flex fuel technology. This will be complimented by additional engineering measures including a new powertrain which will by itself be capable of delivering a 40% reduction in fuel consumption. Overall, Bentley has committed to reduce the CO2 performance of its fleet by 15% by 2012.