Some constants
		hp	fp/s	btu/h	watts		watt	joule/sec	btu/hr		kwh	MJ	BTU			1.0 watt = 1.0 joule/second = 3.413 Btu/hr
		1.0000	550.0000	2,545.0000	745.7000		1.0000	1.0000	3.4130		1.0000	3.6000	3,413.0000			1.0 kilowatt (kW) = 3413 Btu/hr = 1.341 horsepower
																1.0 kilowatt-hour (kWh) = 3.6 MJ = 3413 Btu
		kw	BTU/hr	HP												1.0 horsepower (hp) = 550 foot-pounds per second = 2545 Btu per hour = 745.7 watts = 0.746 kW
		1.0000	3,413.0000	1.3413	1.0001
																1.0 US gallon gasoline (0.833 Imperial gallon, 3.79 liter) = 2.42 kg carbon
			liter	kwh			US Gallon	Imperial Gallon	Liter	C (KG)	C02 (KG)		km	mile
		Gasoline 9.67 kWh/L	1.0000	9.6700			1.0000	0.8330	3.7900	2.4200	8.8000		1.6093	1.0000		CO2 emissions from a gallon of gasoline = 2,421 grams x 0.99 x (44/12) = 8,788 grams = 8.8 kg/gallon = 19.4 pounds/gallon
			liter	MJ	kwh
		32 MJ/liter	1.0000	32.0000	8.8889
		For 200 HP car capable of 200kph - efficiency 26% running for 1 hour at 200kph
		HP	efficiency	HP real	kw	liters (1 hour)*	Speed/Dist (1 hour)	Liters/100km
		200.0000	0.2600	769.2308	573.4964	59.3068	200.0000	29.6534
		Liters/100	US gallons/100km	mpg (US)	Imp Gallons/100km	mpg (imp)	C02 (g/km)
		29.6534	7.8241	7.9418	6.5175	9.5339	688.5218
		* using calorific value of gasoline
		For F1 (Wikipedia)
		Race fuel consumption rate is normally around 75 liters per 100 kilometers traveled (3.1 US mpg - 3.8 UK mpg - 1.3 km/l). Nonetheless a Formula One engine is over 20% more efficient at turning fuel into power than most small commuter cars, considering their craftsmanship.