• Dec 8th 2009 at 7:29PM
  • 35
Brimstone Quadracycle - Click above for high-res image gallery

Power-to-weight ratio – that metric might be the most meaningful performance measurement to consider when judging exactly what piece of machinery you should or shouldn't strap yourself into/onto. If you're the type that wants to leave this world with a giant smile on your face and bugs in your teeth, allow us to introduce you to the Brimstone Quadracycle.

Ostensibly a mash-up between a four-wheeled quad, a motorcycle and a drag car, what we have here is the closest thing you can get to a V8 engine strapped to a Power Wheels. Seriously, this is like a real-life childhood fantasy wrought in metal... almost brings a tear to the eye, doesn't it? It's absolutely insane. And yes, off course we'd gladly take it for a spin.

Brimstone is reportedly willing to build you one with as much as 750 horsepower from a 455 cubic inch aluminum Dart V8. Performance figures? How 'bout zero to sixty in 2.8 seconds? Or, better yet, zero to 120 in six seconds flat. It's even fuel efficient, returning up to 30 mpg, and it can be equipped with a hitch to tow a small boat. They're taking orders now, but you'll have to claim a spot behind us. Thanks for the tip, Kyle S!

[Source: Brimstone Cycles]

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    • 1 Second Ago
      • 5 Years Ago
      Think we just found our "More Money Than Brains" inductee for this month. Sure I dont know the price and it may be reasonable but the sheer craziness of this thing just screams common sense wasn't part of the build process. Hence it qualifies.
      • 5 Years Ago
      I'm guessing this thing costs as much, if not more, than an ariel atom...which makes it obsolete.
      • 5 Years Ago
      Not. Street. Legal.

        • 5 Years Ago
        Your point being?

        Most of us automotive enthusiasts also have/love vehicles that definitely aren't street legal. That doesn't stop us from enjoying them.
      • 5 Years Ago
      Oh, the human mind.
      JDM Life
      • 5 Years Ago
      Good god.

      This thing WILL kill someone....but before that i wanna see this thing drag race a veyron !
      • 5 Years Ago
      This will never see it's limits, due to one reason.

      No seat back.

      Anything approaching half throttle is probably going to self terminate, with the "rider" left on the pavement behind the vehicle, and the vehicle itself becoming an unmanned projectile. I hope the throttle return spring is strong, to cut the power when that happens.
      • 5 Years Ago
      • 5 Years Ago
      omg i think im in love. i actually want this thing. i might need to buy a helmet tho
      Chris Zajac
      • 5 Years Ago
      i want a seat belt....
      • 5 Years Ago
      Under what conceivable highway code would this thing be legal?
        • 5 Years Ago
        This "brimstone quadracycle" was in my garage for 10 days leaking fluids (plural) onto the garage floor. Which is only the beginning of the mechanical problems it has. Nothing short of a nightmare. Also have background on the idiot who builds it that will shock you.
        • 5 Years Ago
        Hmmm, so you just made a lightbulb go off over my head:

        Do motorcycles have any type of crash safety testing?

        As a former 2 wheeler (about 30K in 2 years of daily driving, another 10K in recreational over 5), I can't imagine that there is any. So then why the sudden shift if, essentially, the same vehicle is just mounted on 4 wheels?

        Actually, now that I'm thinking about it - I've seen trikes (3 wheeled "bike based" vehicles) on the road that didn't appear to adhere to 4-wheeled safety standards.

        Is it actually that - just by adding the 4th wheel, you're in a whole new safety regulation ballgame?

        (ps I'm not arguing for or against. Heck, I suspect that today's litre+ bikes being put on 4 wheels would make them safer - think "trianing wheels" for the 18 year old 'busa noob. But I am getting older and can hear the kids screaming at me already...)
      • 5 Years Ago
      How would a design like that fair in the rain? What appears to be the air filter is totally exposed to the weather for a start...
      • 5 Years Ago
      There is something a little scary about going that fast that quick while being that close to the ground with basically nothing in between you and the pavement... but still pure badassness
        • 5 Years Ago
        Nomoreso than Moto GP run at Manx...
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