Up until last year, the Cadillac CTS-V was officially the fastest four-door sedan around the German Nurburgring race track, running 7:59 on the benchmark piece of tarmac where every manufacturer seems to tune their cars on. At some point late in 2009, the Porsche Panamera Turbo claimed the title with 7:56, although its credentials as a sedan are dubious at best, while also being twice as expensive. Now Subaru indirectly claims to have shattered the record with a 2011 Subaru Impreza WRX STI sedan, coughing up a time of 7:55, although their “production” car is dubious at best.
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