LONDON A teenager has been arrested on suspicion of having posted a video of himself on YouTube driving at speeds of more than 140 mph, police said on Thursday.
The car, a Ford Escort, was filmed on the A76 single-carriageway road in southwest Scotland.
The detained 19-year-old has not been named.
Sergeant Scott McLachlan, from the Roads Policing Unit at Dumfries and Galloway police, described it as "completely foolish behaviour".
"Not only did he endanger his own life, but that of other road-users. It is unacceptable, and to post a recording of such driving on the Internet is entirely stupid."
One-in-three fatal accidents involve drivers under the age of 25, he added.
"Young men in particular seem to think they are invincible behind the wheel -- but the facts tell a different story."