Richard, I enjoyed a bit of fun with a CV8 in my yoof, even had a couple of Interceptors in later years... (-: As for disc handbrakes on Jags Lotus Elans etc, it did not take much for their operation to be compromised. It seems the drum in disc handbrakes were more efficient and reliable as in the Volvo, the 911 and others... From a dull memory I owned a Citroen that had inboard front discs on which the handbrake operated, but then Citroen were ever innovative..