Allen Motor Group has acquired Delgarth Motor Company and Milton Keynes Autorama for an undisclosed sum.
The two companies that represent Hyundai, Suzuki and Kia in Milton Keynes and Bletchley have been under the ownership of the Turney family since being founded by Dave Turney in 1981.
Allen Motor Group operates Ford, Kia and Mazda across the South East, West Midlands, London and Kent.
The acquisition includes two Kia dealerships along with Hyundai and Suzuki.
Niall Hooper, CEO of Allen Motor Group said: “We are delighted with the acquisition and very much look forward to welcoming all of our new colleagues into the Allen Motor Group.”
Dave Turney, ex-owner of Delgarth Motor Company and Milton Keynes Autorama said: “We are immensely proud of the business we have built over the years with a fantastic team around us.
“The time has come for myself and my son Steve, to hand the keys over to a much larger and growing group in Allen Motor Group.
“I wish them all the best and would like to thank my amazing team for the past 41 years!”
The deal was managed by David Kendrick and the automotive team at UHY Hacker Young who represented the sellers.
Kendrick said: “Kia and Hyundai are probably two of the most desirable brands in the UK currently therefore it is no surprise there was strong interest in these businesses.
“Having grown their UK dealer group over the past number of years, it fits perfectly for Super Group and cements their relationship with Kia further.”