Almost anyone, upon hearing the description of this 1966 Oldsmobile Toronado for sale on eBay, will ask themselves and anyone within earshot, "Why?!" The owner, however, asked what may be the better question: why not?

The twin-engine Toronado claims IndyCar roots through builder John Gorman, and it sports a total of 850 cubic inches in displacement, all-wheel drive, and 850 horsepower from its duo of V-8 engines.

Despite its curb weight of 5,661 pounds, the Thundernado can rip off a 0-100 run in 10.90 seconds and somehow clear the quarter-mile in just 10.57 (at presumably less than 100 mph), according to the seller's eBay auction page.

Some of the unique tweaks made to the car to account for its unusual mechanical layout include: a rocker switch to start the rear engine, a single shared gas tank, and a special switch to override the transmission for the 3-2 downshift--using the horn button.

Awesome, ludicrous, and almost unique, this car actually has a near-twin. That's right, there's another twin-engine 1966 Toronado out there--and that one is technically the original. The seller claims this one offers many "engineering advancements" beyond the original Grant Piston Ring Company Toronado.

We don't know why anyone would do this, but we're glad someone asked, "why not?" Now, you can ask yourself the same question--the auction price is just $10,600 with two days left and an unmet reserve.

[eBay via Bring a Trailer]