1. Install Move-by-wire.
With this, you get reatction upgrade that you should use when you are driving without being jumped in or otherwise remotely in controll
You also have ratingx2 slots for active skillsofts, that you can use for skills you can find usefull during the way
2. Get the highest possible Command program and upgrade it with Optimization 3 and Ergonomy options, so you can run it even on low performance devices without limiting capacity for other programs. High Rating ECCM also necessary so you are able to work even in jammed area. Databomb...so you can place a mine in every device you controll

3. Get your devices - comlink, vehicles, drones - response upgraded to maximum level, since response is crucial when you are jumped in. Also, Apply Hardening 6 to all those devices to make them more resistant versus EMP attacks
4. Buy Rig and Hot Sim modification (and datajack or skinlink so you dont depend on wifi in every case)
5. Buy Nanohive and Rig booster nanites (Augmentation)
6. You need at least Electronic warfare from Cracking group, and Cybercombat when you got attacked. Hacking also for Spoof and Trace user actions. And Computers for lot of other things such as Matrix perception etc.
7. With HotsimVR, RIG and Nanites 3 you are able to get +7 dices for driving tests, so you dont necessarily need very high Driving skills. But you need those that are not Defaultable, like Pilot Aircraft (every single FlySpy drone needs this) and others. If you are going for remote control, buy Remote control specialization.
8. Navigation, Shadowing and Stealth skills are also good to have for lot of situations
9. And lot of other things, like datasearch (can be used to find lot of things in wireless chaoss, like commanding channels, smartgun data etc.)
10. Technical skills, accompanied with Knowledge skills on engineering, Automotive, Hardware, possibly even Software etc.
11. Good to have is More than metahuman and Natural hardening qualities
im writing this based on my current rigger experience, but many others may have another ideas...