Many years ago these two engineers drank a keg of beer and decided to transform a 1969 Cadillac into the fastest hot tub in the planet. After several attempts their carpool is ready—now they are asking for your help to take their invention to the Bonneville Salt Flats, Utah, and set their silly speed record.

This is how they built it:

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub


Acquire a well-loved 1969 Cadillac in generally sound mechanical condition. Convince AAA that you should get free towing to retrieve it.

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Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Remove superfluous interior, underhood and trunk components by any means necessary.

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Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Install enormous steel reinforcements designed to support thousands of pounds of water.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Using plywood, make a mock tub in the car's interior. Try not to glue your fingers together more than fifteen times.

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Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Using medium density fibreboard (MDF), make a negative tub mold. Sand for what seems like a million days. Spray many gallons of noxious chemicals onto it to make it smooth and shiny.

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Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Lay up fibreglass onto the mold to create the custom tub.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Separate from the mold using compressed air.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Drop it into the passenger compartment.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Reverse the effects of time and collisions on the quality of the bodywork.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Lay down a sweet paint job.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Reinforce, repair and paint the frame.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Get 472 cubic inches to play nicely together.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Drop body on frame like they did back in Detroit.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Park some heat exchangers in the passsenger's foot well to heat the water in the tub using the engine.

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Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Make a custom air-ride suspension system.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Polish about a zillion pieces of chrome.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Make custom fibreglass for the dashboard and other components.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Remember to take care of the little things.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Make a custom roll cage that conforms to the SCTA safety requirements.

Illustration for article titled Guys transform old Cadillac into worlds fastest hot tub

Presto! Carpool DeVille!


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