hyrbid vehicle

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1.Which of the two companies (GMC and Toyota) has the most responsible environmentally conscious hybrid vehicle? Compare and Contrast.

Toyota can be termed as having the most responsible and environmentally conscious hybrid vehicle. Toyota has been the pioneer and the market leader in the hybrid vehicle segment and it was Toyota's success in the hybrid segment that motivated players like GM to explore this segment.

Therefore, the leadership shown by Toyota in the hybrid car segment with its top seller like Prius certainly proves that Toyota has the most reponsible and environmentally conscious hybrid vehicle. Even in terms of hybid technology, Toyota has led from the front. Further, such is technological advancement of Toyota in the hybrid space that even other companies are using Toyota's patented hybrid technology.

2.How regular SUV vs a hybrid SUV compare and differ, and their effects on the environment.

The core difference between a regular and hybrid SUV is certainly the type of fuel or energy they use. While regular SUV's are diesel or gasoline run vehicles, hybrids use alternative fuels like biodiesel, electricity, etc. Therefore, regular SUV's cause pollution and hybrids are environmental friendly or clean vehicles. The rising popularity of hybrids is primarily due to its environmental friendly nature as compared to traditional SUV's.

A difference between the diesel engine of regular SUV and hybrid engine will highlight the technical difference. hybrid is a vehicle that combines mechanisms of propulsion into one integrated system. Most commonly, a petroleum-based power source is paired with a rechargeable electric system capable of storing energy. The term hybrid-electric vehicle (HEV) refers to one that burns either gasoline or diesel fuel in an internal combustion engine while also utilizing batteries to run electric motors. Hybrids could however combine several other means of power, including hydrogen, ethanol, natural gas, solar and electricity off the grid (plug-in electricity). For this comparison, hybrid will refer to gas-electric propulsion.

Diesel engines are similar to gasoline-powered engines in that they rely on internal combustion to develop power. The major design difference is that diesel power plants do not utilize sparkplugs to initiate combustion, whereas gasoline engines do. Instead, diesels rely on high compression to heat intake air in the cylinders enough so that when diesel fuel is sprayed directly into the combustion chambers ignition occurs. This direct injection stands in contrast to the indirect fuel injection methods of many gasoline engines, in which gasoline is mixed with air in a manifold before entering the cylinders.

Reference: http://www.earthcars.com/articles/article.htm?articleId=4

Further, the long term durability of hybrid SUV's, as compared to regular diesel powered SUV's is still unknown because they are relatively newer in the marketplace.

Good source for more comparison:

http://www.edmunds.com/apps/vdpcontainers/do/vdp/articleId=105527/pageNumber=3

3. Compare the companies to each other as environmentally conscious companies.

As noted above, Toyota is the market leader in hybrid technology and thus, can be aptly termed as the most environmentally conscious company. Companies like GM are followers of Toyota in the environmental friendly hybrid car segment.

Toyota's hybrid technology and huge ...