A few months ago, we stumbled across a Ford Crown Victoria in Sweden that had been fitted with a massive 27-liter V12. Fast forward to June and this insane engine up has been fired up for the first time while nestled into the Ford’s engine bay.

The engine in question was built by Rolls-Royce and formerly used in a World War II-era tank; in its hey-day, it delivered roughly 550 hp. That’s a lot of power for a Ford Crown Victoria but isn’t that much when you consider just how massive the V12 is. As such, those behind the project have equipped it with a pair of turbochargers and a custom ECU so it ultimately delivers closer to 2,500 hp.

Read More: This Ford Crown Victoria Is Getting A 27-Liter Twin-Turbo V12 From A Tank

During this video, the car is rolled out from the barn where it is being built before the engine is fired up. It takes a couple of tries to fine-tune the air and fuel ratio before the engine starts for the first time. A thermal imaging camera is then used to ensure that all 12 cylinders are working. The video notes that the pressure pipes to the turbochargers were not connected during these initial tests.

As you can imagine, fitting a 27-liter V12 into a Crown Vic was no small feat. In fact, the car actually has the front end of a Chevrolet C10 pickup truck and the rear of the engine extends into the cabin.

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