Marshall Motor Group is to open a flagship Jaguar and Land Rover dealership in Didcot on October 31.
The centre will be named Marshall Jaguar Oxford and Marshall Land Rover Oxford.
The new Jaguar Land Rover retail concept will showcase both brands operating side-by-side.
The dual arch facility will include a three lane drive-in service reception, 18 car showroom, 20 bay workshop and barista coffee bar.
Adrian Wallington, Marshall JLR franchise director, said: “The opening of this stunning facility represents another step in our growth and investment strategy in Oxfordshire for the Jaguar and Land Rover brands.
“Both brands have a fantastic range of products and some exciting developments planned. This brand new facility will enhance both the customer and our colleague’s experiences.
“Milton Gate, is perfect for our requirements, both in terms of the immediate neighbourhood and the road network.
“Having the second largest business and science park in Europe next door to us will certainly help our plans to further increase penetration of the Jaguar and Land Rover brands in Oxfordshire."
The existing Land Rover and Jaguar centres in Cumnor will close and all staff move to the new site.
Marshall also represents Land Rover in Bedford, Cambridge, Lincoln, Melton Mowbray, Peterborough and Halesworth and the Jaguar brand in Cambridge, Ipswich, Lincoln and Peterborough.
In November Marshall will start a second development in the Thames Valley region, a new Jaguar Land Rover showroom on Greenham Business Park, Newbury's largest business park.