Lamborghini Huracán successor's twin-turbo V-8 sings to 10,000 rpm

Lamborghini is close to revealing its successor to the top-selling Huracán supercar, and the automaker on Monday presented the first details on the car's newly developed powertrain.

The newcomer is code-named the 634, and based on recent trademark activity might carry the Temerario name into production.Lamborghini on Monday confirmed the car will feature a plug-in hybrid powertrain with a twin-turbocharged 4.0-liter V-8 as the internal-combustion component. The engine will deliver 791 hp at a rev range between 9,000 and 9,750 rpm. It was also confirmed to be coming with a flat-plane crankshaft and the ability to rev all the way to 10,000 rpm.

Flat-plane V-8s help deliver more torque lower in the rev range compared to typical cross-plane designs, though they tend to be louder and not as smooth. As a result they are normally found in motorsports, as well as a few high-performance road cars, including from Ferrari and in the latestThe Huracán successor's V-8 will deliver a peak torque of 538 lb-ft from 4,000 rpm all the way up to 7,000 rpm.

Lamborghini is yet to reveal full details on the complete powertrain of the Huracán successor but said the rear electric motor will generate 147 hp. A small electric range should also be possible, as it is likely the car will also adopt the Revuelto's 3.8-kwh lithium-ion battery. The Huracán successor will be revealed later this year, with rumors pointing to a debut in August. With the Urus also recently going the

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