New details are emerging from Geneva about Hennessey‘s ambitions to claim the record for world’s fastest car, including the V8 powertrain that will drive the upcoming Hennessey Venom F5 toward its promised 301 mph top speed benchmark.

Founder and CEO John Hennessey told “Top Gear” the hypercar will have “a completely bespoke, 8.0-liter twin-turbo V8” that will hit no less than 1,600 bhp, which equates to around 1,622 horsepower. But he said he’s contemplating slapping on a couple more turbos and expects to decide before the Pebble Beach Concours in August.

Hennessy first revealed the supercar at the SEMA show last November. There, John Hennessey told Autoblog that he wasn’t necessarily aiming to set a record at the Nürburgring, just to do a lap in under seven minutes, a feat notched by cars like the Lamborghini Huracán Performante and the Porsche 918 Spyder. He also talked about how the car’s design was meant to look like a peregrine falcon. But at the time, the V8 engine specs were still being kept under wraps.

Hennessy unofficially had the title of world’s fastest car in 2014 after the 1,451-hp Venom GT hit 270.49 mph. That’s of course since been eclipsed by rival Koenigsegg, which raced an Agera RS helmed by Swedish race driver Niklas Lilja to an official top speed of 277.87 mph on a closed highway in Nevada in November. When it comes time, Hennessey told “Top Gear“ he may make the attempt in Texas, or return to the same road in Nevada traveled by the Agera RS.

But he insists the Venom F5 will be more than just a straight-line track monster. “Could we build a high-downforce version with the massive splitter and massive wing and lots of downforce? Maybe we’ll do that later,” he said. “For now, [the F5 is] a proper road car that can be driven at crazy speeds in a straight line but still go around turns and stop.”

The company plans to make just 24 examples of the Venom F5 and sell them at $1.6 million apiece.

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