Top three AM100 group Arnold Clark Automobiles has signed a two year deal with online used car classifieds site Motors.co.uk to secure a new rate.

Arnold Clark signed the deal ahead of Motors.co.uk’s June deadline for locking-in rates.

The dealer group has used Motors.co.uk since September 2007.

Motors.co.uk announced earlier this year its intention to become a household name with support from a multi-million pound television advertising campaign. The company has committed a seven figure marketing spend for each month of 2014.