Despite promising to get the VXR from nought to 60mph in 6.2 sec, the best we could extract from KE55 was 6.7 sec; even when on a strict
diet of 99 RON super unleaded; slight flat - spots in the power
delivery when accelerating flat - out from a low starting speed seemed to hamper progress (we've encountered the same problem with
other Astra VXRs we've driven, too).