Dodge has created a monster by putting the 500-hp, 8.3 liter V-10 from the Viper in a motorcycle:

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I’ve seen motorcycles built around 350 V-8’s before, but this is over the top.  It weighs 1500 lbs and has four wheels.  I’m not sure that qualifies as a motorcycle and I would imagine that it will handle like a pregnant elephant.  However, it does 0-60 in 2.5 seconds and has a (theoretical) top speed of 300mph.  So, provided that you don’t have to make any turns, you’ll blow away just about everything out there.

Dodge will be glad to build one for you, provided that you can cough up the cool quarter-million dollar price tag.