To trivium, might be time to start searching around for cars... With all those things you listed, if you have something major, it's probably not worth fixing.
One thing to do though, throw some spark plug cleaner in with your next tank of gas. Cant hurt, its only $2 or so anyway. Clean your air filter and do all the little things, see if it will run a little smoother.
I like that car up there Nexus. I want to clean mine up sometime too. Clear corners, and one of my taillights is cracked. But that's a future thing. First comes woofer, possibly lift the front up an inch or 2 to balance it out, maybe whips. Toolbox would be real nice too, lol. My list goes on and on... Eventually, probably after college, unless I get a big scholarship, I wil put in a 5.0 or 351. Then come back to Harvard, find my friend who always makes fun of rangers, and blow his mustang away... lol.
So the other day, I was teasing my friend a little about his chevy. First I ask, "Got a V8 in there?" Friend, "Yeah." Me, "5.7?" Friend, "Yup!" Me, "Bet my ranger could whoop it." lol, he got angry, but thinking about it, he has about 70 more hp then me, but his truck weighs about twice as much as mine, lol.
Oh, and I got my dads subaru up to 112mph today. Backroads.