At the top of the list of most expensive sports cars in the world is 2015 Porsche 918 Spyder. It is a mid-engined plug-in hybrid super-car. To reduce fuel consumption and CO2 emissions the 918 uses a combination of a compact and potent 4.6-liter V-8 engine rated at 608 horsepower.
Source: USDA 2010. Wheat. The third largest crop grown in the United States is wheat. The US produces hard red, soft red, and white winter wheats and hard red and durum spring-seeded varieties. The US also produces very small amounts of white spring wheat.
How to Harvest Wheat. Wheat is harvested in the summer months when planting has occurred in spring or winter. The moisture content of the wheat is a big deciding factor on when exactly the wheat is harvested. If dry wheat is left out in the field too long, winds and storms can destroy the crop. Should the wheat dry, then get wet from rain and dry again, this process decreases the quality of the wheat.