You're right. The article is wrong. It said:

> 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.