I just wanted to ask, which platform is the best suitable for a small commercial car system. It will comunicate with our server via 3G/EDGE (upload and download database with points of interest). It should have small camera, GPS module and be connected with a laser jammer. What plarform and components do you recommend? I have experience with Arduino and AVR and I study a Bachelor's degree (HW engineering) and this project could also be my thesis.
Given the potential multitude of I/O and processes this will need to manage, you may find x86 easier to work with for smallish volumes. There are dozens of systems out there specifically designed for thesetypes of applications. Most of them feature multiple PCI express Mini card slots for 3G, Wi-Fi, and GPS modules. They are also designed to withstand wider operating temperatures that are encountered in an automotive environment. And, they have built-in power supplies that can accept wide range inputs, and ignition sensing intelligence. They aren't cheap, but you will likely save enough in the development costs to offset the hardware cost.