The group said used car sales rose by 10.8 per cent to more than 175,500 units, buoyed by the opening of news sites and bringing total sales to £3.35 billion.
Pre-tax profit rose 2.2 per cent to £110.3 million, although new vehicle sales fell 8.4 per cent to 83,813 units, “largely a result of a large fleet contract that was not renewed due to the significant amount of working capital tied up in the agreement”.
Additionally, the Glasgow-based dealership said its vehicle-management and daily rental business, Arnold Clark Finance, increased turnover by 10.7 per cent to £559.2m.
Group chairman Sir Arnold Clark said: “In 2016 we expect that the new car market will remain relatively static, with used cars experiencing similar growth to 2015.”