I've been doing a little upgrading to my car (The first car I ever owned, got it in high school back in 1996 and couldnt let it go, now my daily driver is a 2004 deville) and ran across a site that sells remaned skyline engines, I know that those are high performance and thought to myself maybe...
it is one of my favorite cars and I always have it as one in my garage, I was wondering how long/far do you have to play before you unlock it? also if possible how much is it?