Its new look will coincide with its promotion at the British International Motor Show later this month.
Trader Media Group said the fortnightly magazine will be easier to search through, and will have an improved buying and selling guide.
The website, which has around 170,000 prestige car listings, will feature a new, simple homepage layout for easier navigation, and searchability according to the user's postcode.
The majority of Top Marques users have a budget of up to £24,999.
The publication features dealer approved sections covering some of the leading luxury models including Bentley, Lotus and Porsche.