Yep seems correct and very fast.
Mercedes-Benz SLS AMG Roadster laptime at Top Gear Track
2011 Mercedes-Benz SLS AMG Roadster completed a lap of Top Gear Track in 1 minute and 19.6 seconds.
|Track||Top Gear Track|
|Vehicle||Mercedes-Benz SLS AMG Roadster|
|Power / weight||571 ps / 1664 kg|
|Average speed||128 kph (79 mph)|
|Submitted||06.02.2012 by anonymous|
|Reference||TG SEason 18 ep.2|