Linux and F1

What is the relation between linux and formula one?. Adapted from various sources (please googling:), it mentioned that some current F1 teams have been using linux for purposes of computing systems R & D. Computing systems usually require calculation power generated by a collection of servers that form a cluster.
What is the use of this Linux cluster?, we sort one by one:

McLaren F1 Team
* Using Linux for CFD analysis (Computational Fluid Dynamics). CFD is a field of study involving the modeling of wind currents that pass through objects such as car racing. CFD software is a simulation software to determine and predict the behavior of racing cars in various scenarios of wind currents, so the team can develop the right aero package .
* CFD software provided by SGI and run on an SGI Altix supercomputer which of course use the linux OS.

Renault F1 Team
* Using Linux for analysing the results of telemetry posted on the engine and chassis during the race for later use in optimizing the ability of the machine.
* Telemeteri and database software run on IBM's Linux.

BMW Williams F1 Team
* This team also uses CFD software for design and testing aero package. The applications run on top of the HP XC Linux Cluster

Ferrari F1 Team
* This team uses a Linux cluster for R & D in engine and aerodynamic analysis. It also mentioned that Ferrari has collaborated with AMD and now has a Linux cluster with 500 nodes of server.