The world's most expensive car ever to be sold in an auction is the 1957 Ferrari 250 TR that fetched a staggering sum of $12 million. A little background on the car is that with only 21 Ferrari 250 Testa Rossa with the Scaglietti designed pontoon fender body, chassis no. 0714TR is more rare than the 36 250 GTO's made. This beauty was the fourth Ferrari 250 Testa Rossa built, so you understand why the market value is so high with such a rich history. Not everyone will get a chance to rev up this hot car, but Octane's Winston Goodfellow was asked to drive it around in Arizona before it was put up to be auctioned off. Straight from the horse's mouth (GoodFellow),"Still pinned in the seat and with 6500rpm rapidly approaching, shift into second. That split-second when you shift is one of the most heavenly events you’ll ever experience in any car, equalling or bettering the feeling of flooring the pedal of a Bugatti Veyron for the first time or running a 250GTO past 8000rpm.

The 12-cylinder symphony that bellowed at ten-tenths is momentarily muted as revs drop, the sudden silence bringing the sound of the whining gearbox to fore. You feel a slight catch as you shift out of first and hit neutral, then another slight catch as the lever slots into second. Right foot back on the floor now, and the crashing wave of unabated acceleration and spine-tingling 12-cylinder, four-trumpeting-exhaust symphony once again blankets your being." That's just a snippet from his article, but it gives you a good idea of the overall experience and feel of the ride. Goodfellow is one lucky journalist, I must say.

[Jalopnik]