The automaker that currently holds the title for fastest production sedan around Germany's Nurburgring race track may surprise you. The answer is Cadillac, with the supercar-like CTS-V that lapped the track in a record 7:59 minutes. Cadillac worked long and hard on the CTS-V to achieve that goal and it's amazing that they got to it. But now it looks as if Porsche may have beaten that record, if a report from Germany's Sport Auto is to be believed. Three seconds. That's the how much faster the Panamera Turbo is around the track, according to Auto Sport. Now Porsche hasn't confirmed this - if it's true you better believe they will. It'll be a number they'll want to trumpet. There's a few things that seem funny about this