For getting bronze do you get the Red Bull livery or the production/carbon livery?No, you unlock it at the dealer (which you need 20 million and level 40...) and you unlock the Vettel driving challenges, if you bronze them you will get a X1, if you gold them you will get 3 (1 red bull livery version, one production coloured version, one prototype bare carbon).
You get the Redbull S.Vettel Livery, Silver is production and Gold is the bare carbon prototype.
Took me a couple hours each on Nurb GP and Suzuka to get golds, some of that was getting up to full pace (all the little tricks to speed for that car and track combo) but most of it was just pulling off two consecutive laps at full push without much errors. Monza on the other hand was probably 15 minutes (also gold).
I am using a wheel so I am not sure how hard it will be with controller users though.