It's been just over a year since Cadillac captured the title of fastest production four-door car when John Heinricy circulated the Nürburgring's north loop with a CTS-V in under eight minutes. Considering the pace of leap-frogging between the Nissan GT-R, Corvette ZR1 and Viper ACR it's a bit surprising that it took this long for someone to top the super-Caddy. What's not surprising is that it was a Porsche that finally outran the CTS-V.

Now that the four-door Porsche Panamera has been thrust upon the world, it was only a matter of time before one the test drivers from Weissach brought the crown back to the fatherland. The 500-horsepower Panamera Turbo lapped the Nordschleife in 7 minutes, 56 seconds, 3 seconds faster than the Cadillac.

When Heinricy set his 7:59 time last year, it was done in an automatic CTS-V in a single hot lap at the end of a test session. With any luck, we'll see Heinricy or perhaps one of the Corvette C6.R drivers like Johnny O'Connell head back to the Eiffel mountains for another go.