Bugatti Tourbillon Engine 8.3-liter V16 Transmission 8-speed ... According to Rimac, the Instagram clip represents what the production car will sound like. "What a car!" he wrote.

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Of course, before we pull this one completely out of the rumormill file, we'll need either official word from Bugatti or an actual picture of the party invitation that this car supposedly graces.

As if Bugatti's Tourbillon isn't bonkers enough as it is with its V16 plug-in hybrid powerplant, or that the motor makes ...

We see plenty of mostly superfluous and often tacky automotive paraphernalia across the evo office, but we challenge you to look at this 1:4 scale Bugatti Chiron engine and not be fascinated ...

In the face of ever-tightening emissions regulations, Cosworth stands alone in producing fully compliant, high-revving, naturally aspirated supercar engines. We ask: what’s its secret?