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Always wanted a sports car but can’t afford the fuel bills that come with it? Or bored with the tepid torque figure of your naturally-aspirated Ferrari? Well, it’s good news, because the diesel-powered Trident Iceni, a prototype of which was shown at the Salon Privé in London in 2012, is now available worldwide.

If the name Trident sounds familiar to you, that’s because it has been around since 1966, as a British manufacturer building sports cars well into the 1970s. After a number of unsuccessful attempts to make a comeback, the company was bought over by a consortium in 2005.

Available in roadster, Magna (fastback coupé) and Venturer (shooting brake) bodystyles, the Iceni blends retro-futuristic styling both inside and out with a biodiesel-capable GM 6.6 litre Duramax twin-turbocharged V8 producing 395 hp and 948 Nm, mated to a six-speed automatic gearbox. That’s enough to propel the Iceni from 0-100 km/h in 3.7 seconds on to a top speed of over 305 km/h.

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If that still doesn’t tickle your fancy, there is a Performance Pack that will boost performance to 430 hp and 1,288 Nm. But it’s the Track Pack that will give you the full 660 hp and swing the torque figure to an astonishing 1,423 Nm – 52 Nm more than the Koenigsegg One:1 – while providing Proflex three-way adjustable race dampers and Eibach race springs, paddle shifters and carbon ceramic brakes.

But the output figures aren’t even the most impressive aspect – the Iceni utilises Trident’s unique torque multiplication technology, using high torque and low revs – at 112 km/h, the car is running at just 980 rpm – to gain an impressive combined fuel consumption figure of 24.4 km per litre. The company claims a range of around 2,000 miles (3220 km) on a single tank.

Prices for the Trident start at £96,000 (RM526,500), and standard features include power steering, air-conditioning, leather-and-Alcantara-trimmed seats and DAB digital radio. A Premium Pack adds a heated windscreen, carbon fibre interior trim and electric seats, while the Luxury Pack throws in heated door mirrors, a four-piece leather luggage set and a Clarion infotainment system with a seven-inch touchscreen.