The Society of Motor Manufacturers and Traders Limited (maj 2005). "Motor Industry Facts – 2005"(PDF). smmt.co.uk. Arkiveret fra originalen(PDF) 29. september 2007. Hentet 3. september 2009.
The Society of Motor Manufacturers and Traders Limited (maj 2005). "Motor Industry Facts – 2005"(PDF). smmt.co.uk. Arkiveret fra originalen(PDF) 29. september 2007. Hentet 3. september 2009.