While not F1, I did get to check out the garage of a Nascar team and was blown away by the technology and engineering. The car has a ton of sensors recording all kinds of data, and they have a rig that can use that data to essentially put the car into the physical condition at any millisecond of a previous race, i.e. wheel and tire position, precise suspension loads, etc.. so they can physically examine the car/tires/etc.. at any moment in reply of the whole race. Extremely cool stuff!