Many people don't know the difference in some power measures like bhp, kw, whp, hp etc so here's my explanation:
Horsepower (hp) is just a unit used to measure power of engines. Power = Work / Time. If we believe James Watt, 1hp is power needed to lift 550 pounds one foot in 1 second. So 1hp = 550 pounds x 1 foot / 1 sec.
Watts (w) is a unit used to measure power (joules per second). 1000w (1kw) is equal to 1.36 hp in the metric system which is often used.
Power on engine's crankshaft is bigger than power on wheels because pure power of engine's output has some loses in gearbox, differential, water pump, muffled exhaust system and other auxiliary components of an engine.
Brake horsepowers (bhp) is power on engine's crankshaft with no loses on other engine components. Brake refers to a device that holds engine's rpms to hold at desired value.
Wheel horsepowers (whp) is a effective and true measure for real power output because it's measured directly on wheels with all the loses in gearbox and other components. It's a measure of horsepowers that come directly on the wheels and ground. It measures on a dyno.
What's the number difference between whp and bhp? It's different in every car, some of them have more loses of power and some of them less. But usually we add 10-20% of power to get brake horsepowers from wheel horsepowers.
Nissan Skyline GT-R33 on a dyno:
picture by unigroup.com
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The Leblanc Mirabeau is built to reach one aim: let the heart of a real sportscar driver beat as high as never before.
The car is designed and prepared to fulfill all the FIA/Le Mans standards to drive the car in LeMans. 
With this kind of potential, the Leblanc Mirabeau really belongs on the racing track. That this car can be driven on public roads, is sensational. 
The 670 hp Roadyacht GTS is the only 4 door "topless on demand" supercar in the world.
2009 Innotech Corvette C6 Innotech offers a comprehensive customization program for the C6 Corvette that includes extensive styling changes and a range of engines from 500 to 1000 hp.
2009 Mitsubishi Lancer Evolution X FQ-400 The 403 hp FQ-400 is capable of 0-62 mph in a mere 3.8 seconds. It is currently only available in the UK.
The Birkin Edition is available with a full range of performance components raising output to 650 hp.
2009 Savage Rivale Roadyacht GTS The 670 hp Roadyacht GTS is the only 4 door "topless on demand" supercar in the world.
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