Would have to be the Impreza, got into cars purely thanks to rally Imprezas and the holy grail of rally cars (in my opinion). If I somehow was able to afford it I'd probably want to do a build as close to this as possible.
I have tested changing titles from older videos (older than 3 years) and I find updating the title on some lower view videos will somewhat help them gain more views. Although that could be down to changes in keywords in the title
TubeBuddy is worth it regardless if you have the free version or a paid version. Its just such a useful tool for content creators and they have tons of different things to assist you when you need things like tag reccomendations.
I picked up Vegas Pro 14 from Humble Bundle a few years back and found it to be ok to start out with. I do highly recommend picking it up when it appears on sale cause it cost me like $20 instead of $100+ ;)