http://www.streetinsider.com/dr/news.php?id=11032598
Laguna seca: 1:28:65
Vir grand course: 2:40:02

 

Faster than a Porsche 918 around Laguna Seca. Not sure if that is a real surprise or not, though the cost difference between the two is astronomical.

 

wow thats impressive and without any of the advanced hybrid system or advanced traction control either

 

Wow.

 

Just an amazing machine!

 

Downforce. Not a surprise.

 

Don't you hold the fastest record at buttonwillow? Or is that just for "production vehicle"

 

Bit flippant of you.

 

Cannot believe that FCA will allow a car like this to cease production. Who knows what tomorrow's technological and material advances could do for future Vipers.

 

Possibly. I'm not aware of a lap time that's faster from a unibody car, let alone one with untouched suspension pickup points.
Having driven & tracked pretty much every version of Viper, including the impressive ACR-X, and looking at the specs of the new ACR, I would have to disagree. It's really a " racecar" for the street and downforce is so important in making a car go fast, also having 295/355 (essentially) slicks and 650hp make its performance unsurprising. The 918 is heavy, has a lot of tech, but not a lot of aero compared to the ACR.