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The Quantum's a culmination in my lifelong dream to build a supercar
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This is the Quantum GP700, and that 700 stands for both the 700 horsepower it produces
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and the incredibly low 700 kilos it weighs. That's an incredible one-to-one power-to-weight ratio
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It might look like a track car, and it does 0-60 mph in just 2.6 seconds
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That's only a fraction slower than a Formula One car. While you might think it took a whole Formula One size team to put it together, it was in
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fact built by one man, Jeff David. And perhaps most incredibly of all, not only did Jeff build this car himself, he built it
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in his shed. So my dream was to always build the Quantum So I thought I would start with the best car at the time the best roadster that I could buy and that was an Aerial Atom
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So I bought one and I dismantled it and then started modifying it
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So I progressively altered the engine and the chassis and the drivetrain and the brakes
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to improve the performance. eventually culminating in a car that weighed 700 kilos and had 600 brake horsepower
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Having modified the atom, Jeff used his knowledge to set about building the Quantum from scratch
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Starting at the nose, we've got the hand-fabricated front wing that I made
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The design was based on a Formula 3 wing, and I shaped it to try and give a really narrow front nose
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Come around here, and you can see all the moulds. I made all the original panels for the Quantum in carbon fibre
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As we've all seen in Formula 1 cars when they have an accident and the track's strewn with carbon fibre all over, it shatters
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So I experimented with various ballistics grade Kevlar weaves and aramid cloth and carbon fibre mixtures This is a result If Bez pants down to the ground and I tried this it unbelievably robust for carbon fibre Kevlar aramid cloth
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The tyres are roadly or semi-sleek. The steering wheel is custom made
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Geoff's talent for custom making even extended to creating a bespoke engine for the car
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The engine's evolved over many different versions. The overall result has been that it's progressive increasing power
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from the 300 brake horsepower where we started to 700 horsepower now
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It's probably the highest powered supercharged engine in the world of that style
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which is emission compliant and road legal. And Geoff even made sure the car was comfortable to drive
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During the design process of the car, it was really important to me that the car was comfortable
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to drive on the road and I applied suspension that I've developed over 30 years into a shock
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absorber concept on the Quantum and that actually worked much better than I ever expected it might have It provides a comfortable compliant ride on our very rough roads
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The whole process was enormous time-consuming. I'd get up at 5.30 in the morning
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and curfew was enforced by my wife at 7 o'clock at night
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and that was seven days a week. My wife was really lovely
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and she offered to provide the financial support for the family. She gave me a two-year deadline
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so I was able to work full-time for two years uninterrupted and to try and get the car finished
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Component cost was about just over US$300,000 three years ago when the car was built
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and it's approximately 1800 hours to build the car. With a price tag that has definitely exceeded $300,000, Jeff's masterpiece isn't for sale
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although he hasn't ruled out the possibility of building a new model if he found an eager customer
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I just love the look of the car and the way it's turned out, the handling, the performance, the exhilaration
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Every aspect of the car, I really enjoy it and I really love it
