It has 140 nodes, each with 8 GPU's. Add in extra infra like storage, networking etc. and you're looking at around 700 kW at 100% utilization.
> A single A100 GPU’s 54 billion transistors can execute 5 petaflops of performance, according to Nvidia.
It is a single system of 8 GPUs that can do 5 petaflops.
I can't edit my post anymore. Multiply my numbers by 8, or a bit more if you want to take into account higher utilization and the other overheads you mention. So ~500 cars. This is my final offer.