I haven’t tried going that fast, I just found the truck. Anyway, that top speed is ludicrous.
Screenshot:
[URL=http://img231.imagevenue.com/img.php?image=467261296_crazy_fast_122_58lo.jpg]
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Congratulations. You’re the lucky owner of a flatbed truck equipped with one of the most powerful engines in the game. If you think that’s fast, you should check this thread (a bit old, and the engines have been reworked slightly, but it’s still relevant).
But, yes, those speeds are a bit over the top. Some silly fun can be had with them, though.
Yeah, but before you get anywhere near that your engine will explode.
Now to find a way to super cool it somehow. 
Hook it up to the hot tub in back.