We've seen some fairly absurd engine swaps on our time surfing the web, but this one might just take the cake. It's a second-generation BMW M6 that's had its 5.0-liter V10 removed and replaced with a six-rotor engine. And it's for sale.

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That's right. Built by AJ Racing Rotaries in South Africa, this M6 has perhaps the weirdest (and coolest) engine swap we've ever seen. The six rotor engine was built by none other than New Zealand specialists KiwiRE, and is attached to a six-speed sequential transmission.

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A wild engine isn't the only thing AJ Racing added, either. Under the Rotiform three-piece wheels sit 10-piston (!) brake calipers up front, and four-pistons in the rear. KW V3 coilovers occupy the insides of the wheel wells, and custom aero covers the body. Inside, you'll find a partially stripped interior, and some oddly primitive-looking race buckets.

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And what rotary engine wouldn't be complete without cooling? This M6 has two oil coolers and two radiators to ensure there's no overheating when all six triangles are moving at full speed.

Warren Rodger Facebook

There's no priced listed on the South African Facebook Marketplace advertisement, so you'll have to call to find out how much you need to drop to own this one-of-one beast. We have a feeling this car cost a pretty penny to build, so don't expect to pick it up on the cheap.

Still, whatever the owner is asking is almost definitely worth the price. Don't think so? Just listen to it on the dyno.

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via Engine Swap Depot

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