Figures obtained through a Freedom of Information (FOI) request to Police Scotland show that of the 20 highest speeding offences recorded in Scotland over a 15-month period, only one took place on a motorway, with all the others on A roads.
The figures, obtained by the IAM, show the 20 highest recorded speeds between April 2013 and June 2014 inclusive. The speeds, which were recorded on either fixed or mobile speed cameras, ranged from 114mph to 139mph.
The highest recorded speed was 139mph on a 60mph stretch of the A96 Keith to Huntly Road in Aberdeenshire. The second and third highest speeds were recorded on 70mph limit roads; 129mph on the A90 Dundee to Aberdeen Road in Angus, and 127mph on the A9 Perth to Inverness Road.
An earlier FOI request by the IAM showed that the highest recorded speed on a road in England and Wales between April 2013 and May 2014 was 149mph, by a motorist on the M25 at Swanley.
Simon Best, IAM chief executive, said: “These speeds show there are still drivers out there displaying a contempt for the law and for the safety of their fellow road users.
“This is made doubly worse by the fact the vast majority of the incidents took place on A roads, therefore putting oncoming motorists, motorcyclists, cyclists and pedestrians at greater risk.”