I know he raced a Stallion and won a race in 1986 (?) in a Sierra as his last win, but other than 1 book about BSCC/BTCC as a whole, I've got nothing. This website is very complicated to get results for individual drivers from, but it has good results and race reports.
http://touringcarracing.net/Pages/BSCC.html
From what I've read, Brodie seems to be rapid but really luckless.