Fuel efficient automotive technologies have come a long way in the last decade or so. Detrimental to both environment and wallet, “gas-guzzlers” are to a large extent a thing of the past. Car firms have become wise to the fact that most consumers want to use less fuel, one reason why the two biggest car makers in the world are Volkswagen and Toyota – leaders in fuel efficient tech (not withstanding VW's diesel rigging troubles).

But there remain a number of carmakers whose wares are distinctly inefficient. Cars whose engines are so vast they demand petrol-station pit-stops every 200 miles; autos which expend a normal car's daily usage by the time the owner has located first gear.

Here are the ten most fuel inefficient cars on the market today.

10. Rolls-Royce Phantom extended wheelbase, £336,700

Compared to the standard version, the Phantom EWB is more spacious – which is more than can be said for the petrol tank. 17.9mpg on a combined cycle.

9. Aston Martin V12 Vantage, £135,000

Keeping alive the notion that Britain produces some of the most environmentally unfriendly cars on the planet, the V12 Vantage returns a lowly 17.3mpg. But, you might argue, who cares – Look at it!

8. Lamborghini Aventador, £242,280


Famed for its ostentatious styling – as well as its propensity to catch fire for no reason – the 700bhp Aventador delivers a paltry 17.2mpg (Combined).

7. Maserati GranTurismo S, £92,360


Priced under £100,000, this Italian beauty's V8 engine sucks up a gallon every 17.2 miles (Combined).

6. Aston Martin DB9, £125,050

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Another ultra-luxury car from the UK, the DB9 guzzles gas with more gusto than 007 at a vodka Martini convention. Bond's favourite motor is ideal for car chases involving Ferraris or Lamborghinis, but it would soon lose out to a Toyota Prius – because it would have to keep stopping for petrol. However, it does sound nice. 17.2mpg.

5. Bentley Continental GT, £135,760

The Crewe-based manufacturer begins its petrol-hungry trio with the Continental GT. The 567bhp rapper's favourite can travel just 17.1 miles per gallon.

4. Bentley Mulsanne, £220,000

Not that it would worry the owner of such a vehicle, but the Mulsanne's V8 engine boasts a not very boast-worthy 16.7mpg (combined).

3. Bentley Flying Spur Speed, £150,900

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Not to be outdone by its sister models, Bentley's four-door Flying Spur uses up a gallon after a mere 16.6 miles.

2. Maybach 57 5.5 V12, £279,095

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Samuel L. Jackson likes it - and so do petrol companies, because this monster's V12 engine burns up a gallon in just 15.9 miles (combined).

1. Ferrari 599 GTB Fiorano, £212,016

Endowed with a 6.0-litre V12 engine, the Ferrari 599 GTB Fiorano can reach an eye popping 205mph. On the downside, this speed machine's combined fuel consumption is 15.8mpg.