My Jaguar SS100
It was with pleasure that I read the article on my Leonida Jaguar SS100 (Royal Blue, October 2018), which is now for sale with vintage & Prestige. The reason the gearbox is so good is it has double-helical-cut gears, identical to the type fitted in a 1938 SS100, because many parts from the original box were used by me when I reconditioned it.
I have never experienced brake fade mentioned, but most of the brake parts are relatively new and, as they bed in, further adjustment is probably necessary.
You mention an SS100 chassis in the US with a MKV engine. This was someone passing off an SS100 copy using the chassis number of my car. Apparently, this was common as the cars’ value increased. SS100S have the chassis number stamped into the offside channel rail and together with the engine number and unique bodywork, was how the car was identified.