Preposterous, you think. Absurd pipe dreaming. But Dubai-based Devel Sixteen has released a video of its quad turbo, 12.3-litre V16 (built by Steve Morris Engines) on a dyno producing 4515bhp and ...

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But, of course, none of this has actually been proven. The Devel Sixteen’s track-based version is also said to produce over 5 ...