Lifestyle took over the dealership from Russell’s Renault yesterday, which takes its total portfolio to 10.
The deal, which includes the freehold premises, will add £12-15 million to Lifestyle's group turnover.
The Lottbridge Drove site has full servicing facilities, an MoT bay and can perform repairs on Renault LCVs as well as cars.
Lifestyle also represents Ford, Mazda, Subaru and Isuzu in dealerships across Sussex, Surrey, Kent, Tunbridge Wells, Tonbridge, Redhill, Horsham and Crawley.
Peter Isted, Lifestyle Europe managing director, said: "While existing Renault customers will recognise some familiar faces among the staff and can expect the high standard of customer service that they are used to, we are also looking forward to seeing a lot of new faces as we drive the business forward with Renault.
“We’ve officially opened doors today and for the launch we’re offering 10% off selected used cars, 10% off Renault parts and a value service from £99."