The V12 Vanquish has got to be the best vehicle that exists, today. Obviously it isn't cheap, but it is an amazing car. I think I'll be crying after Bond completly destroys his in Die Another Day.
Back to my previous statement for a second. I drive a Toyota Supra Twin Turbo. For those who don't know it's the orange car from TF&TF. That car was ugly with that funky pointless wing, but you get the idea. The supra TT is on par with Vipers and would easily destroy Mustang Cobras, Corvette C05's, and any Porcshe you could throw at it. And with a larger turbo, To4, and larger tires, it would easily be dominating even the Ferrari's and Lambos.