The second season of BTC-T rules in the top class saw two new manufacturer backed teams enter, with Honda returning and Proton entering for the first time.
Reigning champions Vauxhall again entered four Triple 8-run Vauxhall Astra Coupes. With reigning champion Jason Plato not returning, 2001 runner-up Yvan Muller was partnered by James Thompson in the Vauxhall Motorsport entries while Thompson's place in the Egg Sport entry was taken by Matt Neal, fresh from a season in the European Touring Car Championship, alongside Production class graduate Paul O'Neill.
MG, who had trialled their West Surrey Racing-prepared ZS in the closing stages of 2001 retained experienced touring car hand Anthony Reid and Warren Hughes at the wheel.
After a year absence Honda returned with a pair Honda Civic Type-R's prepared by Arena Motorsport, who had previously entered as an independent in 1999. Guernseyman Andy Priaulx, who crossed over from Formula 3 after impressing on a one off BTCC outing for Vauxhall in 2001, was signed alongside Northern Irishman Alan Morrison, the 2000 Production (then Class B) champion.
In late 2001 it was announced that Proton would enter a pair of manufacturer backed cars backed by Petronas and run under the Petronas Syntium Proton - Team [PSP] banner. Jason Plato was initially linked with the drive before Scottish veteran David Leslie and Phil Bennett, who had been dropped by Vauxhall, were officially announced.
With Peugeot withdrawing their factory backing, Vic Lee Racing now headed the independents class, which was reinstated after a 1-year hiatus, with their pair of 406 Coupes, Dan Eaves remained and was joined by 1992 champion Tim Harvey, moving across from JSM. The pair were joined later in the year by Formula Renault championship winner Carl Breeze in a third car.
The works MG squad was supported from second meeting onwards by a WSR-run satellite team carrying the name of the girl band Atomic Kitten as part of a sponsorship deal. This team ran the young pairing of Fiesta racer Colin Turkington and Production graduate Gareth Howell.