Weight-to-Power Ratio in Exotic Cars

You've certainly read about the weight-to-power ratio in some exotic car review. But what exactly does it measure? The weight-to-power ratio tells you how many pounds of vehicle each individual horsepower has to haul. (Alternately, the power-to-weight ratio tells you how many horsepower are allocated for each pound of car.)

Here are the five best -- and five worst -- weight-to-power ratios. Be prepared for a few surprises.

Pagani Zonda S 7.3 Roadster
Pagani Zonda S 7.3 Roadster. Pagani

Weight: 2667 lbs

Horsepower: 678 hp

W/P Ratio: 3.93 lbs/hp


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Pagani Huayra

Pagani Huayra
Pagani Huayra. Pagani

Weight: 2976 lbs

Horsepower: 700 hp

W/P Ratio: 4.25 lbs/hp

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Bugatti Veyron

Bugatti Veyron Grand Sport Sang Bleu
Bugatti Veyron Grand Sport Sang Bleu. Bugatti Automobiles

Weight: 4162 lbs

Horsepower: 1001 hp

W/P Ratio: 4.16

Aston Martin One-77
Aston Martin One-77. Aston Martin

Weight: 3306 lbs

Horsepower: 700 hp

W/P Ratio: 4.72 lbs/hp More »

Weight: 3472 lbs

Horsepower: 700

W/P Ratio: 4.96 lbs/hp More »

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Lotus Elise

Lotus Elise
Lotus Elise. Lotus Cars

Weight: 1931 lbs

Horsepower: 134 hp

W/P Ratio: 14.41 lbs/hp

[This seems insane -- Lotus has the worst W/P ratio? Please, someone, correct me.]

2010 Porsche Panamera. Porsche

Weight: 3880 lbs

Horsepower: 300 hp

W/P Ratio: 12.93 lbs/hp More »

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Rolls-Royce Phantom

Weight: 5622 lbs

Horsepower: 453 hp

W/P Ratio: 12.41 lbs/hp

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Maybach 62

Maybach 62S at the 2010 L.A. Auto Show
Maybach 62S at the 2010 L.A. Auto Show. Kristen Hall-Geisler for About.com

Weight: 6330 lbs

Horsepower: 543 hp

W/P Ratio: 11.66 lbs/hp

Bentley Mulsanne at Pebble Beach
Bentley Mulsanne at Pebble Beach. Bentley Motors

Weight: 5700 lbs

Horsepower: 505 hp

W/P Ratio: 11.29 More »