Gooding & Company
Given the historical significance of this vehicle - it's the oldest running passenger vehicle known - it's actually surprising that it isn't topping this list. Then again, steam-powered cars, especially ones such as this stove atop a four-wheel platform, are not to every collector's taste (or within most mechanic's purview).
Still, "La Marquise," as this little number is named (after the company's patron's mother), is destined to become a cornerstone of a world-class collection based in Houston.
Who is amassing this collection? John O'Quinn, the trial attorney who won the largest settlement in history against the tobacco companies. Watch this space for updates.