The trouble began years ago, when the Super tourers pretty much brought the sport to its knee's, it became far too expensive, and as the car industry hit a downturn, the manufacturers could no longer justify the huge costs. for example what manufacturers spent on one or two races in the 90s could close to run them a full season in the BTCC now, such did the costs escalate.
Also poor marketing and promotion of the series during the early 00s.
However Alan Gow is doing what he did in the 90s, he's turning it around again, the rot has been stopped, and its brilliant to see enthusiastic independants as well as manufacturers, they have every right to be out there as the manufacturers.
With the rules going to S2000 only for manufacturers in 2007, it should entice the manufacturers back, as they already have programmes in the Worlds using the same spec, so making it much easier for them to make the commitment.
Regardless, its still the best motorsport series in the UK, every race is pure entertainment, and the MG ZS, was on the podium for all 3 races, not bad for a car that is no longer built. **** Bennets WSR team is not to be underestimated.