By Danny Baggott @Dan_Baggie
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Videographer / director: Behram Batra
Producer: Danny Baggott, Ruby Coote
Editor: Sonia Estal
The Quantum GP700 was born out of the seven-year passion project of its creator, Jeff David.
Aimed at producing breathtaking performance in a road legal car – the Quantum can reach 0-60mph in a staggering 2.6 seconds.
Jeff, who resides in Victoria, Australia, worked for around 1,800 hours to develop his masterpiece that is now worth approximately $700,000.
Jeff, 62, told Barcroft TV: “The Quantum is a culmination of my life-long dream to build a super car.”
Boasting a one to one power to weight ratio of 751kW/tonne, the Quantum has more than double that of a Lamborghini Aventador and is just a fraction slower than your average Formula 1 car.
Jeff used his work on a previous Ariel Atom chassis to start from scratch and create the Quantum 700 with his practiced knowledge – the 700 represents both the horsepower it produces and the incredibly low 700 kilos it weighs.
“I thought I’d start with the best car at the time, the best roadster I could buy and that was an Ariel Atom,” Jeff said.
“So I bought one and dismantled it and then started modifying it. I progressively altered the engine, the chassis, the driveshaft and the brakes to improve the performance.
“The wheels and tyres are road legal semi sleek and the steering wheel is custom made.”
Jeff’s talent for custom creations allowed him to construct a bespoke engine for the car.
He said: “The engine involved many different versions.
“The overall result has been a progressive increase in power from 300 brake horse power, where we started, to just under 700 horse power now.
“It’s probably the highest-powered supercharged engine in the world.”
Jeff worked tirelessly to finish his hefty design and build – with his wife having to employ a curfew.
He said: “The whole process was enormous and time consuming. Got up at 5:30 in the morning and the curfew enforced by my wife was at 7o’clock at night - and that was seven days a week.
“She gave me a two year deadline. So I was able to work full time for two years uninterrupted to try and get the car finished.
“The component cost was just about $300,000, three years ago, when the car was built.”
With an impressive price tag, Jeff has admitted his ultimate Quantum vehicle is not for sale.
Although, he hasn’t ruled out the possibility of building a new model if he found an eager customer.
He added: “I just love the look of the car.
“The way it’s turned out with the handling, the performance, the acceleration.
“Every aspect of the car I really enjoy it and I really love it.”