The Wolverhampton group opened the three-acre Autopark site this month and expects it to boost its £83m bottom line and climb to about 70 from 91 in the AM100.
Citroen and Fiat occupy two of three showrooms and the company is in talks with another manufacturer to take the third. The group also represents Honda, Nissan, MG Rover and Vauxhall.
Next year's sales forecast for the site is 2000 new cars and 800 used cars with aftersales and servicing contributing significantly to turnover. An application has been made to secure approved repairer status for Alfa Romeo.