The late addition of Ollie Jackson and Michael Caine will see a record grid in the modern era of the BTCC.
While a smaller grid is expected at the season opener at Brands Hatch in a couple of weeks time, 32 entries have been registered for the 2013 season - an indication of the success the new NGTC-spec cars have brought in terms of cost-cutting since their introduction in 2011.
Caine will race for Motorbase Performance, in a second Ford Focus alongside Liam Griffin, while Jackson joins Dave Newsham in a Speedworks Motorsport Toyota Avensis.
The drivers join a grid that will boast four previous champions, including the returning Colin Turkington, and reigning champion Gordon Shedden, who took his maiden championship in 2012.
The 2013 season will get under way at the Brands Hatch Indy circuit in Kent on March 31st.
2013 British Touring Car line-up:
Team Car Drivers
Honda (Team Dynamics) Honda Civic Gordon Shedden/Matt Neal
MG (Triple 8) MG6 Jason Plato/Sam Tordoff
Motorbase Performance Ford Focus M Jackson/A Smith/L Griffin/M Caine
WSR BMW 125 M C Turkington/R Collard/N Foster
Team HARD VW Passat Tom Onslow-Cole/Howard Fuller
Vauxhall Insignia Jack Goff/James Cole
Speedworks Motorsport Toyota Avensis Dave Newsham/Ollie Jackson
Ciceley Racing Toyota Avensis Adam Morgan
IP Tech Chevrolet Cruze Andy Neate/TBA
AmD Tuning VW Golf James Kaye
Rob Austin Racing Audi A4 Rob Austin/Will Bratt
Eurotech Racing Honda Civic Andrew Jordan/Jeff Smith
Dynojet Toyota Avensis Frank Wrathall
Welch Motorsport Proton Gen-2 Dan Welch
Ford Focus David Nye
BTC Racing Chevrolet Cruze Chris Stockton
Team BMR SEAT Leon Warren Scott
Wood Vauxhall Vectra Lea Wood
Tech-Speed/Finesse Chevrolet Cruze Joe Girling