This is ASF 461 (Chassis No. 13675) recently acquired (May 2013) by Anthony McGarel-Groves from Marianne van Hoof. The Sp25 had been bought by Dr van Hoof in a Christie’e auction in 1976. Reply
Alvis Archive 
This is ASF 461
Chassis No. 13,675
With a rather fetching Louis Vuitton valise on the boot
This is ASF 461 (Chassis No. 13675) recently acquired (May 2013) by Anthony McGarel-Groves from Marianne van Hoof. The Sp25 had been bought by Dr van Hoof in a Christie’e auction in 1976.