Best cars for billionaires

Powered by a 6-liter 573-horsepower V12, the Aston Martin Vanquish offers best "blend of performance, design and craftsmanship" in this category, according to Robb Report.

Available in both two-seat and "two-plus-two" versions -- with a pair of small backseats -- Vanquish prices start at about $280,000. It's not the best performing car in this category but, with a zero-to-60 time of just four seconds, it's certainly no slouch.

The other contenders were the Mercedes-Benz SLS AMG Black Series, priced similarly to the Vanquish, plus the Bentley Continental GT Speed, BMW M6 Coupe, and the Ford Shelby GT500, a relative economy car at just $55,000.

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