Independent, and indeed unofficial, car spotters are reporting that the Corvette ZR1 set a roughly 7:12 lap time around the Nurburgring.

Although that's an impressive time, and an improvement over the C6 ZR1's 7:19 lap time, it's still slower than Chevrolet want.

The report comes from Bridge to Gantry, which reports that track conditions were good and Chevy had the 'Ring all to itself.

That said, we don't currently know what Chevy wanted to achieve with these laps, whether they were hot or not, and a whole bunch more, but we do know that Chevrolet wants to set a sub-seven minute lap with the ZR1.

Tadge Juechter, Corvette Chief Engineer, told Road & Track back in November that, while a lap time isn't a priority, he hoped the ZR1 would be in the sixes.

Such a time would put the Corvette in pretty exclusive company along with the Porsche 918 (6:57) the Lamborghini Aventador 750-4 SV (6:59), the Radical SR8 and LM (6:55, 6:48), the Lamborghini Huracan Performante (6:52), the Porsche 911 GT2 RS (6:47), and that's it.

Although cars can be better suited to some tracks than others, there are minor indications that the ZR1 should be capable of more. We know that the ZR1 was a little less than 3 seconds faster than the Viper ACR at the 3.25 mile Virginia International Raceway. At the Nurburgring, meanwhile, the same Viper set a 7:01 time.

Chevrolet still has its work cut out for it, though, as even on the very long Nordschleife, cutting 12 seconds is a tall order.

[source: Bridge to Gantry, via GM Authority]