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Leaf is the latest concept car designed by Shanghai Automotive Industry Corporation (SAIC) that features an odd leaf as its roof, giving an impression of being eco-friendly. This innovative roof is crafted from foliage and able to produce oxygen just like a real leaf. Moreover, the leafy roof features a solar panel to generate and store electricity, and more surprisingly, it directs the car to move into a position where it can get the most suitable sunlight coverage. The wheels also contain spinning wheels that can generate electricity too when the car moves forward. This energy-efficient vehicle not only will reduce the fuel cost of operating a car, but also will help developing an emission free environment.

leaf car

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Sit down and take a deep breath, EV fans. The Nissan Leaf electric car will cost $32,780 when it rolls into showrooms in December. Add in the federal EV tax credit, and the bottom line is $25,280, a price that makes the Leaf competitive with the Honda Civic and the Toyota Prius.

Nissan announced the price today and said it starts taking reservations for the Leaf electric car April 20. The five-passenger hatchback sports a 23 kilowatt-hour lithium-manganese battery that’s good for a claimed 100 miles and recharges in eight hours. The Japanese automaker plans to crank out 50,000 Leafs in 2011. With some 85,000 “hand-raisers” expressing interest in getting one, some EV advocates believe Nissan’s priced the car so competitively it could have trouble meeting demand.

“I think it’s an excellent price,” said Paul Scott, a founder and board member of the EV advocacy group Plug-In America. “I think Nissan is going to have a hard time keeping them on the showroom floor, especially in states that have additional tax credits. In California, it’s going to be a hell of a bargain at $20,028. They’ve really nailed it. It’s very, very affordable.”

We must note that these prices are for the United States only, and Nissan is offering the Leaf for sale or lease only as a complete package. It is not leasing the battery separately from the car here in the United States, though it might do so elsewhere. continue reading…

How are tyres  made?Your tyres are the only grip and contact between your car and the road. They should also provide a comfortable ride, yet be as robust and hard-wearing as possible, maintaining safe and controlled manoeuvrability for your vehicle.

To achieve this, tyres need to be carefully constructed from a combination of different ingredients. As many as 200 separate raw materials can be used in the construction of one tyre.

To see the tyre construction in more detail, click here.

The tread is the grooved outer layer that is in direct contact with the road. The rubber compound is designed to grip the road, resist general wear and tear and cope with high temperatures generated by friction.

The grooves and tread sipes on the shoulder of the tyre are specially designed to channel water away from the surface of the tyre, maintaining maximum wet grip.

Different rubber compounds are used for tyres to make them suitable for different vehicle’s and driving conditions. For example, racing cars have tyres that can work at very high temperature ranges with optimum grip, enabling prolonged usage at high speeds on the track. These tyres wear more rapidly than typical road tyres which are balanced to provide optimum steering, braking, road holding and wear capabilities.