Impressive and neat Dave with shedloads of solid state high current switching within no doubt. Dread to think of price though. I also wonder how programmable they are for conditional and timed switching though given they are strictly for race use

Like all tech, the price will fall rapidly.
Actually there's already a PMU on the market for just £500!
A PMU is a modern cost effective solid state programmable replacement for fuses and relays, and it already exists!.