The firm saw sales fall by about £1 million to £126.3m in 2005, with pre-tax profits down more than 50% at £1.1 million.
"The collapse into administration of the MG Rover group in April 2005 contributed to an 0.8 per cent fall in group turnover and consequent impact on group profits," the company said.
"Responsibility was assumed for the manufacturer's warranty for customers affected by Rover's demise , resulting in additional costs to the group."
The firm added that the trading position "are considered to be satisfactory in the light of turbulent trading conditions within the motor trade during the year".
Macrae & Dick owns Land Rover, Jaguar, Honda and several Ford dealerships under its own brand as well as selling BMW and Minis through its Menzies dealerships.