Cambria Automobiles' underlying profit before tax rose by 21.7% to £5.6m in the six months to the end of February.
Revenue increased by 11.0% to £309.1m and underlying earnings per share rose by 19.5% to 4.41p.
- Underlying net profit margin up to 1.8% (H1 2016: 1.67%)
- Positive operational cash flows maintained, with a cash position of £17.2m (H1 2016: £25.3m) and net cash of £3.3m (H1 2016 net cash: £0.3m)
- Strong balance sheet with net assets of £45.8m (H1 2016: £37.6m)
- Rolling twelve month return on equity of 21.76% (H1 2016: 21.15%)
- Interim dividend increased by 25% to 0.25p (H1 2016: 0.2p)
Chief executive Mark Lavery said: "I am pleased with the Group's financial performance in the first half in which we delivered 21.7% profit growth in an uncertain consumer environment.
"Following on from the significant number of acquisitions, site openings and disposals completed in the 2016 financial year, the aim for the current year is to continue integrating these businesses and progressing our property developments.
"This in turn will help to realise the full potential of these acquisitions and to increase their operational capacity. We are making good inroads into both of these areas.
"Whilst the Board remains cautious, we are pleased that Cambria's performance in the combined months of March and April was in line with the previous year.
"We are therefore confident that the full year results will be slightly ahead of the current market expectations."