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Fast and Green?
Lets talk nickel – your oil company can expect £10bn in profit and they can gold-pressed latinum parachute an American VP from an oil giant to the tune of £37bn if you believe the papers. Wishing to stay that way causes all kinds of anomalies, I am convinced that they are interested in the environment and they are committed to ruling the planet even beyond petroleum, which is why the Lotus 270E Tri-fuel is so interesting. Lotus’ plan, and its impressive, has been to equip the Lotus Exige 270E Tri-Fuel with non-corrosive fuel pipes and an alcohol sensor, not in the cabin but deep inside the engine, the combustibility of any mixture of methanol, ethanol, petrol and other biofuels can be instantly fed to the engine’s computer processor and combustion controlled from there. This is impressive to someone like me who spends most of his time wondering what the new fuel E85 is constituted of - only to find its 15% petroleum, hmm. Left to fend for myself against the cruel world of acronyms with only 3 degrees in engineering I find this approach by Lotus practicable and therefore likely to succeed. I mean, when was the last time you popped to the supermarket for a specific mixture of fuels? Makes sense to support a range of them doesn’t it? So, Lotus are well poised to obtain green credentials for their performance cars in the future, especially given
the minimal costs involved in converting to any Tri-fuel combination. Lotus’ crowning achievement in this field is the proposition of recovering methanol from the atmosphere from renewable fuel powered
hydrolysis of water to produce H2 and its combination with atmospherically scrubbed CO¬2 to form methanol as shown in the diagram overleaf. This would reduce the Lotus Exige 270E Tri-Fuel from 190g CO2 per litre to 0g CO2 per litre. Beat that, Lotus believe this could be achieved in the next two decades.


 
Discussions with Lotus
In the meeting which ensued we were treated toa technical discussion with Alastair Florance
 
(PR Manager), Matthew Reed(PR Officer) and Dave Minter (Executive (Engineer). The tyres on the Lotus Exige 270E Tri-Fuel were designed to have the bare minimum tread, wet conditions are accommodated for by the extra-wide depressions in them – providing for the uniformity of driving characteristics as described by Lotus Engineering's Executive Enginer Dave Minter on hand. Characteristics like braking are designed to be Linear
 

so that the human brain can lend itself to the operation of a Lotus, whilst still contemplating mortality I presume. In the design, sacrifices for all out speed are made to ensure driving characteristics are similar in different conditions over variable surfaces, not all performance cars can be described in those terms. The Toyota based engine is reprofiled for the car and one secret to Lotu handling and awesome stability is the Vehicle Dynamics Team who have full access to the adjacent Lotus race track to fine tune the vehicle like no other I’ve encountered. The continual testing in the process is surely the secret to this car’s performance. Having your own race track adjacent to the design and vehicle production appears to have its advantages. Even the staff operate at close quarters further reinforcing the sense of a tightly interwoven community which delivers a package of similar attributes.
Production issues are arguably even more important to producers of moderate volumes. The weight saving choice of Aluminium allows Lotus to save on die costs to create a high degree of variation. The substructure of the vehicle is composed of two symmetrical extrusions from aluminium that can be varied in length and width easily to create fundamental changes in form and shape.
There is an atmosphere of collective, refined and impressive intelligence
at Lotus, the spread of vehicle design made possible by the intelligent

 
 
 
 
 
 
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