Paying $100 or more to fill up a tank isn't fun, but the pleasure of big vehicles and big engines come with the price tag of big fuel consumption rates.

While consumers are flocking in droves to fuel efficient cars, gas guzzlers will always be around in some form because of their power and size. And contrary to what one might think, some of the worst gas hogs aren't the big hulking SUVs or trucks, they're the imported, high-priced roadsters. Getting only eight miles per gallon in the city, the Lamborghini Murcielago is the least efficient vehicle on the road, but if you can afford to spend $300,000 on a car, fuel prices are likely irrelevant to you.

Here are some of the least efficient vehicles on the road.

The top 10 of the 2008-model year:

1. Lamborghini Murcielago 6. Lincoln Mark LT 2. Mercedes-Benz G Class (G55AMG) 7. Dodge Ram Pickup 1500 3. Jeep Grand Cherokee SRT8 8. Nissan Armada 4. Aston Martin DB9, DB10 9. Hummer H3 5. BMW M5 10. Toyota FJ Cruiser

5. BMW M5 MSRP: $83,900 Style: Sedan (BMW M5) Mileage: 11 city/17 highway Engine: 5.0-liter V-10 Transmission: Seven-speed sequential manual Curb weight: 5,071 lbs.

Source: Edmunds.com